Butt Fusion Welding Machine, Butt Welding Machine, HDPE Pipe Welding Machine manufacturer / supplier in China, offering Fusing X HDPE Electrofusion Welding Fiiting 90 Degree PE Fitting OEM, Fusing X Electrofusion 45 Degree Elbow PE100 HDPE Pipe Fitting ISO, Fusing X DN110 PE100 Electrofusion Flange HDPE Stub End SDR11 and so on.