For Plastic Welder Automotive Repair Machine Welding Wire Car Bumper Repair Welding Machine Tool. The plastics welding staple are made of fine quality tungsten steel materials, which are practical, have fine hardness and toughness, and are easy to process. Used for permanent repairing of breaks, cracks and tears in rigid or flexible thermoplastics parts. Efficiently fuses plastic surfaces with consistent heat distribution. Ensures durable, leak-proof welds with a smooth finish., Manufacturer: XINQQDC