PVC products can generally be divided into hard and soft two categories. No plasticizer is added in the processing of hard products, while a large number of plasticizers are added in the processing of soft products. PVC was originally a rigid plastic with a glass transition temperature of 80-85 C. T

Compared with traditional metal pipes, PVC plastic pipes have many characteristics, such as light weight, corrosion resistance, high pressure resistance, no scaling, no water flow noise, clean and sanitary, low water flow resistance, no secondary pollution, good weather resistance, strong heat prese