It is a branch of PE pipe. It is a high-density polyethylene pipe. The difference from ordinary PE pipes is that HDPE pipes must withstand a certain amount of pressure. The raw materials are high-density polyethylene with high molecular weight and good mechanical properties. It is a thermoplastic resin with high crystallinity, heat and cold resistance, and its strength is 9 times that of ordinary polyethylene pipes (PE pipes). The higher the molecular weight, the higher the wear resistance of the material. HDPE pipes rank first in the wear resistance of all current engineering pipelines.