... ,5mm,6mm,7mm 2. Round,Flat,Triangle 3. Black,white,red,blue,clear 4.MOQ: 20kg PP Welding Rods Rolls Material:PE ... /PP(Polyethylene/Polypropylene),ABS, PVCColor: usually black and ... -proof; anti-corrossion; poisonousless.Usage:Used to weld the plastic container,plastic plates, pipes and so on. 4MM ...