plastic welding rods acid-proof; anti-alkli; Salty-proof; anti-corrossion; poisonousless. plastic welding rodsMaterial:PE/PP, ABS, PVC etc.Color: usually black and white,other colors as buyers' opinion.Diameter: 3.0mm-5.0mm; The special diameter can be made according to customer's requirement.Used to weld the plastic container,plastic plates, pipes and so on. Polyethylene welding rods