Plastic welding rolls 1.Round (2-15mm) 2.Triangle(4*4* ... .Flate rectangle (2*8mm) 4.PE,PP,PVC,ABS,hdpe Plastic welding rollsMaterial:PE/PP(Polyethylene/Polypropylene),ABS, PVC, PVDF,HDPE ... ;Salty-proof; anti-corrossion; poisonousless.Usage:Used to weld the plastic container,plastic plates, pipes and so on. Best Quality ...