... Cooling Torch10.Mig/Co2 Welding Parts : contact tip , tip holder, swan neck, welding nozzle, gas diffuser, welding liner ,teflon liner, ... feeder,wire feeder motor,11.Tig /Argon Welding & Cutting Parts : electrode tip & nozzle , welding collect ,collect body,gas lens , ceramic ... and 5-8 research engineers.In recent years, resistance welding electrode series products have passed ISO900I-2000 Certificate, ...