HDPE Butt Fusion Fittings, HDPE Socket Fusion Fittings, HDPE Electrofusion Fittings manufacturer / supplier in China, offering Fusion Welded Pert Type II Elbow 90 Degree for Plumbing 63mm-500mm, Pert II Socket Welding 45 Degree Elbow for Radiant Heating, Pert Type II Socket Welded Metal Thread Female Tee and so on.