The plastic pipe joint is generally made of synthetic resin, that is, polyester as a raw material, adding a stabilizer, a lubricant, a plasticizer, etc., and is extruded in a pipe making machine by a "plastic" method. It is mainly used in piping, drainage, exhaust and sewage sanitary pipes, underground drainage pipe systems, rainwater pipes, and threading pipes for wire installation and installation of house water supply systems. The most widely used of it are PVC pipe joints, which have the advantage of being widely used quickly. PVC pipe couplings have good tensile and compressive strength, and corrosion resistance and chemical resistance are also good. Therefore, it will be widely used.