... XKS-02 cast iron defect welding machine / weld pin hole machineMain Parameters:1.Input Voltage: AC 220V Single-phase: ... parts and other tools.2. Suitable defect: Pin holes, gas hole, burring, flash, bump, scuffing, edge chipping, pinhole porosity, crackle, ... , stainless steel, casting steel, cast iron, cast aluminum, tungsten carbide alloy, and all electrical conductor.4. The position: Sharp corner ...