document.write("机械加工工序卡片.doc 518.00 KB机械加工工艺卡片.doc 70.50 KB毛坯图.dwg 311.44 KB设计说明书.doc 905.50 KB钻床夹具体.dwg 304.16 KB钻床夹具装配图.dwg 332.84 KB零件图.dwg 321.66 KB封面.doc 27.50 KB");