Welding class description Techn. Spec.: welding class/welding quality 001/ Page 1 of 11 - Rev.00 DME WELDING CLASS FOR WELDED STRUCTURE 焊接结构件的焊接等级 Here below the reference drawing to explain welding class 以下图为例解释焊接等级 : Detail: “A” 细节: “A” 细节: “B” Detail: “B” Detail: “A” 细节:“A”对接焊缝:全熔透 Butt weld: complete penetration 角焊缝:部分熔透 Fillet weld: partial penetration 对接焊缝:全熔透 Butt weld: complete pene