... as different resistance)11.Laser welding does not need vacuum environment or X ... infusion. Just required inert gas to prevent the melt pool from being oxidized. Golden ... greeting card, tag, model, foam industries.METAL WORKING,ELECTRONICS&CHIP INDUSTRIES.Garment cutting, pattern ... , stamp & rubber, pressing roller engraving, corrugated paper industries.Laser welding for machinery, electronics, aviation, ...