... 1985 ) .2.DECK Formed by Cold-rolled steel plate punching with the thickness of 2.3mm and 9mm of diameter, (EU EN1176 and ... weld must be less than 1 mm of error process, so the impact of weld quality by artificially small, welding quality and stability, ... all changing, it is difficult to achieve the uniformity of the quality. In addition, welded by robot make the product solid, no glitches, no bubbles ...