Non-stick solders: One-pieces molding is corrosion-resistant and not easy to rust Long Lasting Functionality: Achieve precise and secure welding with our stainless steel welding nozzle, designed to resist and rust, ensuring long lasting functionality Stainless steel welding nozzle: Suitable for standard round nozzle with 8mm outer diameter Usage: Used for heating and fixing plates before welding, which is for subsequent covered electrodes welding Grooved welding nozzle: The covered electrodes will not when welded, Manufacturer: Tsophreniq