... we are the world famous brand OEM supplier, gas diffuser. 2. TIG welding guns and parts, ... back cap, cup gasket, collet, collet body, gas lens body, cable fittings, alumina nozzle, power cable ... adapters, switch, torch body, etc. 3. Tungsten rod, such as WT20, WZ8, WT30, WC20 ... ground clamp, tip cleaner, gouging torch and parts, gas regulator, flow meter, gauge/meter, round, square ...