... 2. Precision Die repair, and is widely used in hydraulic power plant. Injection Molding Machine.3. Machinery ... porosity, crackle, abrasion, wear and tear, miscalculation in manufacture, defect in manufacture, welding defect.3. Suitable material:Aluminum material ... :Welding examples: 1. Corner flashes, holes, pin holes, foundry parts2. Weld big machine holes, small defects, like machine guide track ...