BS 7670-2-1997 电阻凸焊的钢螺母和螺栓.焊接螺母和螺栓的焊接规范 (Steel nuts and bolts for resistance projection welding - Specification for welding of weld nuts and weld bolts)

本文件为PDF文档. BS 7670-2-1997 电阻凸焊的钢螺母和螺栓.焊接螺母和螺栓的焊接规范 (Steel nuts and bolts for resistance projection welding - Sp文件大小 134.65 KB