... manufacture XKS-02 cast iron defect welding machine / weld pin hole machineMain Parameters:1.Input Voltage: AC 220V Single-phase: 50 ... etc. It is very suitable for small defect parts. Very large defect is not available.Application:1. Main application:Dies, forging ... parts and other tools.2. Suitable defect: Pin holes, gas hole, burring, flash, bump, scuffing, edge chipping, pinhole porosity, crackle, ...