HDPE Butt Fusion Fittings, HDPE Socket Fusion Fittings, HDPE Electrofusion Fittings manufacturer / supplier in China, offering Hot Water Flange Pert Type II Pipe Fittings, Pert Type II Flange Adaptor 40mm-110mm, Pert Type II Hot Water Socket Fusion Flange Stub End 40mm-110mm and so on.