Plastic Welding Rods 1.Round (2-15mm) 2.Triangle(4*4* ... (2*8mm) 4.PE,HDPE,PP,PVC Plastic HDPE welding rodsMaterial:PE/PP(Polyethylene/Polypropylene),ABS, PVC, PVDFColor: usually black and white,other ... ;Salty-proof; anti-corrossion; poisonousless.Usage:Used to weld the plastic container,plastic plates, pipes and so on ...