... of a machines which can do more than strengthen. 2. Precision Die repair, and is widely used in hydraulic power plant ... products, machine spare parts and other tools.2. Suitable defect: Pin holes, gas hole, burring, flash, bump, scuffing, edge chipping, ... .Welding parts:Welding process:Welding examples: 1. Corner flashes, holes, pin holes, foundry parts2. Weld big machine holes, small defects, like ...