... crackle, abrasion, wear and tear, miscalculation in manufacture repair metal tools/ better than Spot welder, Arc welder / cold welder XKS-02 ... hard alloy such as tungsten carbide. 2. Simple operation and multi-function 3. Normal temperature welding, the structure near the ... pressure casting dies, metal products, machine spare parts and other tools.2.Suitable defect can repair: Pin holes, gas hole, ...