Feature:1. Used with standard plastic welding gun nozzle, this product is made of 304 high-temperature resistant stainless steel alloy. It has good corrosion resistance, heat resistance (up to about 800 degrees), low-temperature strength and mechanical properties. It will not have quality problems such as corrosion and oxidation deformation under high temperature for a long time. It is an ideal accessory for plastic welding accessories.2. Used for welding polypropylene, polyethylene, PVC and polycarbonate.3. Non stick electrode / smooth pull welding / high precisionSpecification:Material: stainless steel, titanium alloyColor: SilverSize: 5 / 7mm Round y nozzle size: length: 60.7mm standard nozzle size: length: 70.7mm fixed nozzle size: length 55mmInstruction:7mm Round y nozzle: applicable nozzle: suitable for standard nozzle with outer diameter of 8mm; Applicable electrode: suitable for round electrodes within 6mm5mm Round y nozzle: applicable nozzle: suitable for standard nozzle with outer diameter of 8mm; Applicable electrode: suitable for round electrode within 4mmStandard nozzle: suitable for welding gun head with outer diameter of 32mmNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-2cm measuring deviation due to manual measurement.Included: 1 xWelding Nozzle