As the polyethylene pipes with high density can not withstand high temperatures, it can not solve the problem of indoor water supply. Therefore, the United States has developed a new type of high temperature pipe of polyethylene (PE-RT)with heat-resistance property. In addition to all the advantages of the High-density poly ethylene, It also provides a good solution to the indoor water supply. Heat-resistant poly ethylene is a copolymer with ethylene-octence as the copolymers monomer. In the polymerization reaction, the number and distribution of the polyethylene branched chain ha been under an appropriate control, making the PE-RT material have excellent mechanical properties. Without crosslinking, PE-RT pipe would have a high temperature resistance. At a water supply temperature of 70 degree,its service life can last as long as 50 years even under a pressure of 0.97Mpa for a long-term use. Huayi pipes are just well made of such raw materials. Name: PE-RT S5 Size: 20?.0 25?.3 32?.9 Name: PE-RT S4 Size: 16?.0 20?.3 25?.8 32?.6 Name: PE-RT S3.2 Size: 16?.2 20?.8 25?.5 32?.4