PPR Pipe Hot Fusion Welding Machine 1.Material: aluminum alloy 2.Sizes: 20 to 110 3.Pressure Rating: 2.5MPa PPR Pipe Hot Fusion Welding MachineHot welding machine uses electric ... high volumeHot welding machine working power and diameters:1) 600W, 20-32mm2) 800W, 20-63mm3) 1,500W, 75-110mm PPR Pipe Hot Fusion Welding Machine, High ...