Pex Pipe, Multilayer Pipe, PPR Pipe manufacturer / supplier in China, offering Hewai Five Layer Plastic Pex-B EVOH Multilayer/Composite Pipe for Underfloor Heating, Hewai NF Cstb Certificate Hot Water Pipes Plastic Tube Pexb Pipe, Hewai DIN4726 16mm Pexb EVOH Pipe with Oxygen Barrier for Underfloor Heating and so on.