... 2.for PVC,PE materials flex,etc, 3.simple operation,AC inverter Automatic Hot Air Welding Machine1.No glue splicing2 ... .for PVC,PE materials flex,etc,3.simple ... DHPE, LDPE, EVA, Pp plastic materials that can be hot melted. It is small, light and easy to operate ... . The button turns down temperature Automatic Hot Air Welding Machine