... overlap welding of tents, marquees and roofing material. Roofing and water proofing hot air welding machine. Roofing and water proofing hot air welding ... used for overlap welding oftents, marquees, pool liner, canvas and roofing materials. Easy-to-weld, widely used for welding PE, PVC ... Machine: Max.5000PaGross Weight: 37.4kgsCarton Size: 66*46*49cm Roofing and water proofing hot air welding machine