Two-head Welding Machine for plastic windowHJ02-3500 ... PVC door-window. 2.window machine 3.CE Two-head PVC Welding Machine for plastic window HJ02-3500 ... drive, simple operation, stable capability. Weld thre e-point, two point, single point, transom, cross -transom and special angle ... up of machine heads, frame, electric controller box, profile-holding frame, etc.Two-head PVC Welding Machine for plastic ...