HDPE Pipe Welding Machine, Manual Butt Fusion Welding Machine, Drainage Machine manufacturer / supplier in China, offering Hot AC 160-400 Plastic Products Butt Fusion Welding Machine Pipe Fitting HDPE 160mm-400mm, Low Frequency AC Pipe Fitting Butt Fusion Machine Welding with High Quality 160mm-400mm, 160mm Versatile Electrofusion Tensioner Tool for Pipe Joining Projects and so on.