... Plastic hot air welder 1.Auto function . 2.Digital display 3.For welding PVC,TPO ,EVA membrane Plastic hot air welding machine,PVC hot air ... light,easy to operate.Electronic control can set the air temperature, welding speed The welding pressure is changed according ... Air pressure: 3000Pa Welding speed:2.7~20.7 ft/minWelding width: 40mmWelding material thickness: 0.3-5mm , Plastic hot air welder ...