The weld quality of the automatic welding is stable, the internal defects of the weld are less, the plasticity is good, the impact toughness is good, and it is suitable for welding long direct welds. Semi-automatic welding is ideal for welding curves or welds of any shape due to manual operation. Automatic and semi-automatic welding shall carry out with welding wire and flux compatible with the primary metal. The steel structure welding wire shall comply with the requirements of national standards, and the flux shall determine according to the welding process requirements.
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