Anti-Back Fire Device Oxyhydrogen Gas Refrigerator Air Conditioner Brass Welding Torch Accessories. Anti-Backfire Protection: Built-in flashback arrestor ensures safety during welding and cutting operations. High Temperature Capacity: Welding capacity reaches 2800 degrees for fast and precise results. Versatile Applications: Suitable for jewelry welding, wax investment casting, and general brazing. Complete Accessory Kit: Includes one torch, four copper nozzles, and an optional needle. OEM and ODM Services: Flexible customization options available from samples or designs. CE and ISO Certified: Product meets CE and ISO9001 standards for quality and safety. Hydrogen Fuel Source: Uses clean oxyhydrogen gas for efficient combustion. Single Flame Design: Standard size with a single flame configuration for precision work.