... cover, advertising cloth, plastic cloth 2.Auto function Water proofing and roofing welder, PVC Roofing welding machine,Plastic welding machine ... ,EVA membrane.Feature:Welding products for large-scale sheet and film processing, such as roofing sheets, container cover, ... Welding speed: 1-15m/min Welding width: 40mm Water proofing and roofing welder, PVC Roofing welding machine,Plastic welding machine ...