... moulds cold welding repairing machine (XKS-01) / pin hole repair machine (XKS-01) / weld metal surface holes machine Characteristics: 1. ... casting dies, metal products, machine spare parts and other tools.2. Suitable defect: Pin holes, gas hole, burring, flash ... examples: 1. Corner flashes, holes, pin holes, foundry parts2. Weld big machine holes, small defects, like machine guide track, big mould, 3 ...