What tungsten needle does Christie's cold welding machine 250s use?

Tungsten needle model 2.0. Christie's cold welding machine adopts Dash-ARC patented arc ignition technology, which can meet the requirements of 0.03mm fine welding and mold repair and realize millisecond welding response speed. And it has an intelligent throttle system, and the gas flow system is self-controlled, saving gas costs 10%-20%. Cold welding machine of Harvest Technology meets the precise operation of welding process and reduces the gas cost. It is a cold welding machine with performance and cost performance.