... two difficulties of thermal strain and after-treatment, and saves the production period of mould.AdvantagesIt is specially designed for ... are extensive: cold work alloy steel, hot work alloy steel, nickel tool steel, high grade steel, steel alloy, high tenacity aluminum alloy, ... systemMicroscope (360° adjustable)Protection gasOne line (xenon)Welding wire diameter0.1mm-0.6mm laser spot welding machine