End-to-end solutions from raw materials to production equipments for PU foam and mattress.
ALFORU's Foam Block Cutting Machine
Sabtech Technology Limited is dedicated to the pursuit of foam block cutting machine's performance by improving the production process and design. This product is high in accordance with the first-class quality inspection standards. The defective raw materials are eliminated. Therefore, it outperforms well among similar products. All these actions make it highly competitive and qualified.
To expand our small Sabtech brand into a big one in the international market, we develop a marketing plan beforehand. We adjust our existing products so that they appeal to the new group of consumers. Additionally, we launch new products that cater to the local market and start selling it to them. In this way, we open up new territory and expand our brand in a new direction.
We have cooperated with many reliable logistics companies and established an efficient distribution system to ensure fast, low-cost, safe delivery of products at Sabtech Technology Limited. We also carry out training to our service team, imparting product and industry knowledge to them, thus to better respond to customer's needs.
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14. Poor Rebound
A. Raw materials: high activity polyether polyols, low molecular weight, highly active silicone oil.
B. Process formulation: high silicone oil content, excessive tin, high water content with the same tin usage, high TDI index, large amount of white oil and powder.
15. Poor Tensile Strength
A. Raw materials: excessive low molecular weight polyether polyols, low functionality hydroxyl value.
B. Process formulation: insufficient tin, poor gelation reaction, high TDI index with the same tin usage, low water content, low crosslinking.
16. Smoke during Foaming
Excessive amine release a large amount of heat during water and TDI reaction, causing evaporation of low-boiling substances and smoke. If not core scorching, smoke mostly consists of TDI, low-boiling substances, and monomer cycloalkanes in polyether polyols.
17. Foam with White Streaks
Fast foaming and gelation reaction but slow transfer in continuous foaming, resulting in a dense layer due to localized compression, causing white streaks. Increase transfer speed or lower material temperature, reduce catalyst usage.
18. Brittle Foam
Excessive water in the formulation leads to excess biuret formation, which does not dissolve in silicone oil. Poor use of tin catalyst, insufficient cross-linking reaction, high content of low molecular weight polyether polyols, high reaction temperature causing ether bond breakage and decreased foam strength.
19. Foam Density Lower than Set Value
Foam index is too high due to inaccurate measurement, high temperature, low pressure.
20. Foaming with Skin, Edge Skin, and Bottom Air
Excessive tin, insufficient amine, slow foaming rate, fast gelation rate, low temperature during continuous foaming.
21. Elongation Rate Too High
A. Raw materials: high activity polyether polyols, low functionality.
B. Process formulation: low TDI index, insufficient cross-linking, high tin.
22. Uncontrolled Foam (Small bubbles rapidly moving beneath surface)
A. Low-pressure foaming machine: increase mixing head speed, decrease gas injection.
B. High-pressure foaming machine: increase mixing head pressure.
23.Milky Moving Lines
A. Increase conveyor speed
B. Adjust cushion plate inclination.
C. Reduce amine catalyst usage
24.Inserted Material Backflow
A. Increase conveyor speed.
B. Adjust cushion plate inclination.
C. Increase amine catalyst usage.
25.Moon Pits
A. Low-pressure foaming machine: reduce mixing head speed and gas injection.
B. High-pressure foaming machine: increase mixing head pressure.
C. Silicone oil quality issue.
D. Increase amine amount while reducing tin amount to ensure adequate cell opening.
26.Slow Curing,Sticky Surface
Polymer strength increases too slowly, resulting in soft, sticky foam that is difficult to cut.
Foam blocks appear unstable when exiting channels.
Increase catalyst usage, check polyol, water, and TDl measurement accuracy.
A. Raw materials: high activity polyether polyols, low molecular weight, highly active silicone oil.
B. Process formulation: high silicone oil content, excessive tin, high water content with the same tin usage, high TDI index, large amount of white oil and powder.
15. Poor Tensile Strength
A. Raw materials: excessive low molecular weight polyether polyols, low functionality hydroxyl value.
B. Process formulation: insufficient tin, poor gelation reaction, high TDI index with the same tin usage, low water content, low crosslinking.
16. Smoke during Foaming
Excessive amine release a large amount of heat during water and TDI reaction, causing evaporation of low-boiling substances and smoke. If not core scorching, smoke mostly consists of TDI, low-boiling substances, and monomer cycloalkanes in polyether polyols.
17. Foam with White Streaks
Fast foaming and gelation reaction but slow transfer in continuous foaming, resulting in a dense layer due to localized compression, causing white streaks. Increase transfer speed or lower material temperature, reduce catalyst usage.
18. Brittle Foam
Excessive water in the formulation leads to excess biuret formation, which does not dissolve in silicone oil. Poor use of tin catalyst, insufficient cross-linking reaction, high content of low molecular weight polyether polyols, high reaction temperature causing ether bond breakage and decreased foam strength.
19. Foam Density Lower than Set Value
Foam index is too high due to inaccurate measurement, high temperature, low pressure.
20. Foaming with Skin, Edge Skin, and Bottom Air
Excessive tin, insufficient amine, slow foaming rate, fast gelation rate, low temperature during continuous foaming.
21. Elongation Rate Too High
A. Raw materials: high activity polyether polyols, low functionality.
B. Process formulation: low TDI index, insufficient cross-linking, high tin.
22. Uncontrolled Foam (Small bubbles rapidly moving beneath surface)
A. Low-pressure foaming machine: increase mixing head speed, decrease gas injection.
B. High-pressure foaming machine: increase mixing head pressure.
23.Milky Moving Lines
A. Increase conveyor speed
B. Adjust cushion plate inclination.
C. Reduce amine catalyst usage
24.Inserted Material Backflow
A. Increase conveyor speed.
B. Adjust cushion plate inclination.
C. Increase amine catalyst usage.
25.Moon Pits
A. Low-pressure foaming machine: reduce mixing head speed and gas injection.
B. High-pressure foaming machine: increase mixing head pressure.
C. Silicone oil quality issue.
D. Increase amine amount while reducing tin amount to ensure adequate cell opening.
26.Slow Curing,Sticky Surface
Polymer strength increases too slowly, resulting in soft, sticky foam that is difficult to cut.
Foam blocks appear unstable when exiting channels.
Increase catalyst usage, check polyol, water, and TDl measurement accuracy.
Density:
A. PU flexible foams with high density have many small pores, appearing fuller. However, the higher the density, the poorer the water absorption.
B. Generally, PU flexible foams with high density also have high hardness, but it is not ruled out that some high-density foams may add super soft additives, making the sponge very soft. Therefore, PU flexible foams of the same density may have different degrees of softness or hardness.
C. High-density foams are often used for sound-absorbing cotton, sofa cushions, soft packaging materials, etc. Medium and low-density foams are generally used for protective materials.
Resilience:
A. Slow rebound foams, also known as inert foams, memory foams, zero-pressure feeling foams, etc. Slow rebound foams have a "honeycomb" structure, so they cannot quickly return to their original shape after being compressed.
B. Characteristics of slow rebound foams: good water absorption, sound insulation performance; strong toughness, high tensile strength, good shock absorption and cushioning performance; good heat insulation and thermal insulation, can withstand severe cold and heat.
C. High rebound foams have a mixture of pore sizes, different skeleton thicknesses, and a high open hole rate. When compressed, they produce rebound forces with different supporting forces in different deformation states.
D. High rebound foams have super strong resilience and breathability; excellent anti-fatigue performance and flame retardancy; the feel is similar to latex surface.
A. PU flexible foams with high density have many small pores, appearing fuller. However, the higher the density, the poorer the water absorption.
B. Generally, PU flexible foams with high density also have high hardness, but it is not ruled out that some high-density foams may add super soft additives, making the sponge very soft. Therefore, PU flexible foams of the same density may have different degrees of softness or hardness.
C. High-density foams are often used for sound-absorbing cotton, sofa cushions, soft packaging materials, etc. Medium and low-density foams are generally used for protective materials.
Resilience:
A. Slow rebound foams, also known as inert foams, memory foams, zero-pressure feeling foams, etc. Slow rebound foams have a "honeycomb" structure, so they cannot quickly return to their original shape after being compressed.
B. Characteristics of slow rebound foams: good water absorption, sound insulation performance; strong toughness, high tensile strength, good shock absorption and cushioning performance; good heat insulation and thermal insulation, can withstand severe cold and heat.
C. High rebound foams have a mixture of pore sizes, different skeleton thicknesses, and a high open hole rate. When compressed, they produce rebound forces with different supporting forces in different deformation states.
D. High rebound foams have super strong resilience and breathability; excellent anti-fatigue performance and flame retardancy; the feel is similar to latex surface.
Polyurethane soft foam plastic is one of the important products in the polyurethane industry. Its production necessarily involves the use of organic amine catalysts, especially organic tertiary amine catalysts. This is because organic tertiary amine catalysts play a significant role in the main reactions of polyurethane foam formation: the reactions of carbon dioxide and molecular polymerization, promoting rapid expansion of reaction mixtures, increased viscosity, and sharp increase in polymer molecular weight. These conditions are essential for the formation of foam bodies, ensuring that soft foam plastics have advantages such as low density, high strength-to-weight ratio, high resilience, and comfort for sitting and lying. There are many types of organic amine catalysts that can be used for polyurethane soft foam plastics. Among them, the highly efficient catalysts recognized by various manufacturers are: triethylene diamine (TDEA) and bis(dimethylaminoethyl) ether (referred to as A1). These are also the most widely used organic amine catalysts in the world today, with the highest consumption among various catalysts.
Due to the molecular structural differences between TDEA and A1 catalysts, there are significant differences in their catalytic performance, particularly in their reactions to carbon dioxide gas and molecular polymerization. If the user does not pay attention to these differences in production, not only will they fail to produce qualified foam products, but it will also be difficult for foam bodies to form. Therefore, understanding and mastering the performance differences between these two catalysts in polyurethane foam production is of great significance. TDEA exists in a solid state under normal conditions, making its application less convenient. In actual production, low molecular weight alcohol compounds are commonly used as solvents, formulated into 33% solutions for ease of use, commonly referred to as A33. On the other hand, A1 is a low-viscosity liquid that can be directly applied. Below is a comparison of the catalytic performance differences between A1 and A33 in the production of polyurethane soft foam plastics.
A33 has a 60% catalytic function for the reaction with carbon dioxide gas and a 40% catalytic function for molecular polymerization. It has a low effective utilization rate of carbon dioxide gas, resulting in lower foaming height and higher foam density. Since most of the catalytic function is used for molecular polymerization reactions, it is easy to produce closed-cell foam bodies, which are stiff with low rebound, and the adjustable range of tin catalysts becomes narrower. To achieve the same catalytic function, the amount used is 33% more than A1. Both the bottom skin and outer skin of the foam body are thicker. Increasing the amount can increase the reaction speed, but the amount of tin catalyst must be reduced accordingly, otherwise closed-cell foam bodies will be produced.
A1 has an 80% catalytic function for the reaction with carbon dioxide gas and a 20% catalytic function for molecular polymerization. It has a high effective utilization rate of carbon dioxide gas, resulting in higher foaming height and lower foam density. Since most of the catalytic function is used for gas generation reactions, it is easy to produce open-cell foam bodies, which are soft with high rebound, and the adjustable range of tin catalysts becomes wider. To achieve the same catalytic function, the amount used is less than A33. Both the bottom skin and outer skin of the foam body are thinner. Increasing the amount can increase the reaction speed, but the amount of tin catalyst must be increased accordingly, otherwise over-foaming and cracking may occur.
In terms of overall performance between TDEA and A1, A1 has a higher comprehensive catalytic performance than triethylene diamine. Its actual application effects are also better, although not as convenient as triethylene diamine in terms of transportation and storage. Currently, the vast majority of mechanical continuous foam production facilities almost exclusively use A1, while all box-type foam production facilities use TDEA. However, this is not absolute. With a clear understanding of the differences between the two and appropriate formulation adjustments, they can be interchangeable and both can produce excellent foam products.
Due to the molecular structural differences between TDEA and A1 catalysts, there are significant differences in their catalytic performance, particularly in their reactions to carbon dioxide gas and molecular polymerization. If the user does not pay attention to these differences in production, not only will they fail to produce qualified foam products, but it will also be difficult for foam bodies to form. Therefore, understanding and mastering the performance differences between these two catalysts in polyurethane foam production is of great significance. TDEA exists in a solid state under normal conditions, making its application less convenient. In actual production, low molecular weight alcohol compounds are commonly used as solvents, formulated into 33% solutions for ease of use, commonly referred to as A33. On the other hand, A1 is a low-viscosity liquid that can be directly applied. Below is a comparison of the catalytic performance differences between A1 and A33 in the production of polyurethane soft foam plastics.
A33 has a 60% catalytic function for the reaction with carbon dioxide gas and a 40% catalytic function for molecular polymerization. It has a low effective utilization rate of carbon dioxide gas, resulting in lower foaming height and higher foam density. Since most of the catalytic function is used for molecular polymerization reactions, it is easy to produce closed-cell foam bodies, which are stiff with low rebound, and the adjustable range of tin catalysts becomes narrower. To achieve the same catalytic function, the amount used is 33% more than A1. Both the bottom skin and outer skin of the foam body are thicker. Increasing the amount can increase the reaction speed, but the amount of tin catalyst must be reduced accordingly, otherwise closed-cell foam bodies will be produced.
A1 has an 80% catalytic function for the reaction with carbon dioxide gas and a 20% catalytic function for molecular polymerization. It has a high effective utilization rate of carbon dioxide gas, resulting in higher foaming height and lower foam density. Since most of the catalytic function is used for gas generation reactions, it is easy to produce open-cell foam bodies, which are soft with high rebound, and the adjustable range of tin catalysts becomes wider. To achieve the same catalytic function, the amount used is less than A33. Both the bottom skin and outer skin of the foam body are thinner. Increasing the amount can increase the reaction speed, but the amount of tin catalyst must be increased accordingly, otherwise over-foaming and cracking may occur.
In terms of overall performance between TDEA and A1, A1 has a higher comprehensive catalytic performance than triethylene diamine. Its actual application effects are also better, although not as convenient as triethylene diamine in terms of transportation and storage. Currently, the vast majority of mechanical continuous foam production facilities almost exclusively use A1, while all box-type foam production facilities use TDEA. However, this is not absolute. With a clear understanding of the differences between the two and appropriate formulation adjustments, they can be interchangeable and both can produce excellent foam products.
Calculation of foaming distance for continuous foaming machine
Given: Bubble release time for the formula is 108 seconds, conveyor belt speed during foaming is 4.6 meters per minute. Calculate the swinging and trough foaming distances.
Foaming distance when swinging: (108/60) x 4.6 = 8.28 meters
Foaming distance when troughing: [((108-18)/60)] x 4.6 = 6.9 meters
Explanation: For the same formula, continuous foaming machine has a shorter bubble release time than small bubbles. The calculated foaming distance is shorter than the actual foaming distance. This method only provides approximate confirmation of the foaming distance, supporting the adjustment of the settling plate. Troughing: 18" indicates the time in seconds that the raw material stays in the overflow trough.
Calculation of foaming height for continuous foaming machine
Given: Formula flow rate: 80 kilograms per minute for polyether, 20 for white polyether, 60 for TDI, 20 for stone powder, conveyor belt speed 4.5 meters per minute, mold width 1.65 meters, producing foam with a density of 25 kilograms per cubic meter. What is the foaming height in meters?
Total formula weight: 80 + 20 + 60 + 20 = 180 kilograms
Formula volume: 180/25 = 7.2 cubic meters
Base area of conveyor running per minute:
4.5 x 1.65 = 7.425 cubic meters
Foaming height: 7.2/7.425 = 0.97 meters
Explanation: Silicone oil, amine, and tin are not considered here as they offset the amount of carbon dioxide used during the foaming process. Moisture content (MC) is not considered because MC does not increase foam weight when vaporized.
Foaming Daily Operation
Beginners worry that improper adjustment of the settling plate will cause the liquid sprayed from the nozzle to surge forward or backward, affecting foaming. The reaction rate gradually increases within the first two minutes after starting the machine, sometimes requiring corresponding adjustments to the settling plate. Adjustments to the settling plate are more critical in formulas with low density and high MC.
TDI flow rate can be calculated by determining the corresponding scale value for the flow rate, but it is recommended to measure the TDI flow rate during the first foam production. Flow rate is too important; if the flow rate is incorrect, everything else will be a mess. It's best to rely on the simplest and most intuitive method of measuring flow rate.
When powder is being mixed, the mixed stone powder should be left overnight and production should start the next day. For formulations containing melamine and stone powder, it is recommended to first mix the melamine with the polyether for a period of time before adding the stone powder.
Formulas for foam machines with longer mixing chamber or more teeth on the mixing shaft typically have less amine and lower material temperature. Conversely, formulas for foam machines with shorter mixing chamber or fewer teeth on the mixing shaft typically have more amine and higher material temperature.
For the same formula, when switching between dual spray swing heads and single spray swing heads, if the cross-sectional area of the two nozzles is similar, the requirements for the fineness and number of layers of the mesh are similar.
Correction of small material flow rate can be done by measuring the return flow rate of the small material, or by dividing the total usage by the foaming time for correction. When the values obtained from the two correction methods differ significantly, the data from the second correction method should be used.
Formulas for soft foam with better properties are usually in an unstable range, such as lower TDI index, lower water to MC ratio, lower T-9 dosage, and lower silicone oil dosage. Just like in our jobs, there must be effort before reward.
Given: Bubble release time for the formula is 108 seconds, conveyor belt speed during foaming is 4.6 meters per minute. Calculate the swinging and trough foaming distances.
Foaming distance when swinging: (108/60) x 4.6 = 8.28 meters
Foaming distance when troughing: [((108-18)/60)] x 4.6 = 6.9 meters
Explanation: For the same formula, continuous foaming machine has a shorter bubble release time than small bubbles. The calculated foaming distance is shorter than the actual foaming distance. This method only provides approximate confirmation of the foaming distance, supporting the adjustment of the settling plate. Troughing: 18" indicates the time in seconds that the raw material stays in the overflow trough.
Calculation of foaming height for continuous foaming machine
Given: Formula flow rate: 80 kilograms per minute for polyether, 20 for white polyether, 60 for TDI, 20 for stone powder, conveyor belt speed 4.5 meters per minute, mold width 1.65 meters, producing foam with a density of 25 kilograms per cubic meter. What is the foaming height in meters?
Total formula weight: 80 + 20 + 60 + 20 = 180 kilograms
Formula volume: 180/25 = 7.2 cubic meters
Base area of conveyor running per minute:
4.5 x 1.65 = 7.425 cubic meters
Foaming height: 7.2/7.425 = 0.97 meters
Explanation: Silicone oil, amine, and tin are not considered here as they offset the amount of carbon dioxide used during the foaming process. Moisture content (MC) is not considered because MC does not increase foam weight when vaporized.
Foaming Daily Operation
Beginners worry that improper adjustment of the settling plate will cause the liquid sprayed from the nozzle to surge forward or backward, affecting foaming. The reaction rate gradually increases within the first two minutes after starting the machine, sometimes requiring corresponding adjustments to the settling plate. Adjustments to the settling plate are more critical in formulas with low density and high MC.
TDI flow rate can be calculated by determining the corresponding scale value for the flow rate, but it is recommended to measure the TDI flow rate during the first foam production. Flow rate is too important; if the flow rate is incorrect, everything else will be a mess. It's best to rely on the simplest and most intuitive method of measuring flow rate.
When powder is being mixed, the mixed stone powder should be left overnight and production should start the next day. For formulations containing melamine and stone powder, it is recommended to first mix the melamine with the polyether for a period of time before adding the stone powder.
Formulas for foam machines with longer mixing chamber or more teeth on the mixing shaft typically have less amine and lower material temperature. Conversely, formulas for foam machines with shorter mixing chamber or fewer teeth on the mixing shaft typically have more amine and higher material temperature.
For the same formula, when switching between dual spray swing heads and single spray swing heads, if the cross-sectional area of the two nozzles is similar, the requirements for the fineness and number of layers of the mesh are similar.
Correction of small material flow rate can be done by measuring the return flow rate of the small material, or by dividing the total usage by the foaming time for correction. When the values obtained from the two correction methods differ significantly, the data from the second correction method should be used.
Formulas for soft foam with better properties are usually in an unstable range, such as lower TDI index, lower water to MC ratio, lower T-9 dosage, and lower silicone oil dosage. Just like in our jobs, there must be effort before reward.
Have you ever wondered how polyurethane plastic foam is formed? In the previous article, we revealed the basic reactions behind it: isocyanates, polyether (or polyester) polyols, and water, all work together to create this magical substance. So, does this mean that in actual production, we only need these three raw materials? The answer is far from it. In our actual production process, in order to more precisely control the reaction rate and produce products with excellent performance, we often need to harness the power of various additives. These additives not only have wide-ranging applications but also can play a huge role in making our production process more efficient and stable.
Surfactants / Silicone Oil
Surfactants, also known as silicone oil, are also called foam stabilizers. In the production process of polyurethane foam, its role is crucial. The basic duty of silicone oil is to reduce the surface tension of the foaming system, thus improving the miscibility between components, adjusting the size of bubbles, controlling the bubble structure, and enhancing foam stability. Furthermore, it also bears the responsibility of preventing foam collapse. Therefore, it can be said that silicone oil plays an indispensable role in the production of polyurethane foam.
Catalysts
Catalysts play a crucial role in the synthesis process of polyurethane, mainly by accelerating the reaction between isocyanates, water, and polyols. This reaction is a typical polymerization reaction. Without the presence of catalysts, this reaction may proceed very slowly or even not at all. Currently, catalysts on the market are mainly divided into two types: amine catalysts and organic metal catalysts. Amine catalysts are compounds based on nitrogen atoms, which can effectively promote the polymerization reaction of polyurethane. Organic metal catalysts, on the other hand, are compounds that particularly affect the reaction between polyols and isocyanates in the formation of polyurethane, usually organotin compounds. The characteristic of these catalysts lies in their ability to precisely control the reaction process, resulting in a more uniform and stable final product.
Blowing Agents
Blowing agents are substances that generate gas during the polyurethane reaction and help form foam. Depending on the way gas is generated, blowing agents are usually divided into chemical blowing agents and physical blowing agents. Chemical blowing agents refer to substances that undergo chemical changes during the reaction, generate gas, and promote foam formation. Many common substances in our daily lives are actually chemical blowing agents, such as water. Physical blowing agents, on the other hand, are substances that generate gas through physical means. For example, dichloromethane (MC) is a common physical blowing agent.
Other Additives
Relying solely on basic raw materials is far from enough to make products have outstanding performance. In order to meet various needs, other additives are cleverly incorporated into the production process, and their roles should not be underestimated. For example, flame retardants can add flame resistance to products, crosslinking agents can enhance their stability, colorants and fillers can give products a more colorful appearance and texture, and various other additives with different functions are also playing their roles. It is these carefully selected additives that comprehensively improve the performance of the products and bring users a better user experience.
Surfactants / Silicone Oil
Surfactants, also known as silicone oil, are also called foam stabilizers. In the production process of polyurethane foam, its role is crucial. The basic duty of silicone oil is to reduce the surface tension of the foaming system, thus improving the miscibility between components, adjusting the size of bubbles, controlling the bubble structure, and enhancing foam stability. Furthermore, it also bears the responsibility of preventing foam collapse. Therefore, it can be said that silicone oil plays an indispensable role in the production of polyurethane foam.
Catalysts
Catalysts play a crucial role in the synthesis process of polyurethane, mainly by accelerating the reaction between isocyanates, water, and polyols. This reaction is a typical polymerization reaction. Without the presence of catalysts, this reaction may proceed very slowly or even not at all. Currently, catalysts on the market are mainly divided into two types: amine catalysts and organic metal catalysts. Amine catalysts are compounds based on nitrogen atoms, which can effectively promote the polymerization reaction of polyurethane. Organic metal catalysts, on the other hand, are compounds that particularly affect the reaction between polyols and isocyanates in the formation of polyurethane, usually organotin compounds. The characteristic of these catalysts lies in their ability to precisely control the reaction process, resulting in a more uniform and stable final product.
Blowing Agents
Blowing agents are substances that generate gas during the polyurethane reaction and help form foam. Depending on the way gas is generated, blowing agents are usually divided into chemical blowing agents and physical blowing agents. Chemical blowing agents refer to substances that undergo chemical changes during the reaction, generate gas, and promote foam formation. Many common substances in our daily lives are actually chemical blowing agents, such as water. Physical blowing agents, on the other hand, are substances that generate gas through physical means. For example, dichloromethane (MC) is a common physical blowing agent.
Other Additives
Relying solely on basic raw materials is far from enough to make products have outstanding performance. In order to meet various needs, other additives are cleverly incorporated into the production process, and their roles should not be underestimated. For example, flame retardants can add flame resistance to products, crosslinking agents can enhance their stability, colorants and fillers can give products a more colorful appearance and texture, and various other additives with different functions are also playing their roles. It is these carefully selected additives that comprehensively improve the performance of the products and bring users a better user experience.
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Over 20 years of first-hand production and usage experience, our technology development team aims to make every machine exhibit the characteristics of simplicity, labor efficiency, ease of operation, and minimal maintenance.
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Contact Person: Wenky Lau
Contact Number: +86-15687268672
Email: sales1@alforu.cn
WhatsApp: +86 15687268672
Company Address: NO. 18 South Industry Road, Dongguan City, Guangdong Province China
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