Butt Fusion Welding Machine, Butt Welding Machine, HDPE Pipe Welding Machine manufacturer / supplier in China, offering High Efficient Heavy Duty Automatic Pipe Roll Groover Machine for 2 Inch to 12 Inch Steel Pipes, Electric ID Mounted Pipe Beveling Machine 80-240mm, Fully Automatic 8 Inch to 32 Inch Roll Grooving Machine, 24 Inch Steel Pipe Roll Groover for Max Wall Thickness 13mm and so on.