... PPR Pipe Fusion Welding Machine 1.Material: aluminum alloy 2.Sizes: 20 to 63 3.Pressure Rating: 2.5MPa PPR Pipe Welding DeviceHot welding machine ... electric melting connection with welding dies. Put pending pipe and fitting on to the dies to heat for an appropriate time, ... volumeHot welding machine working power and diameters:1) 600W, 20-32mm2) 800W, 20-63mm3) 1,500W, 75-110mm PPR Pipe Fusion Welding ...