document.write("4.夹具体.dwg 40.62 KB3.毛坯图.dwg 31.91 KB2.装配图 .dwg 104.90 KB1.零件图.dwg 53.27 KB工序卡片.doc 58.50 KB机械加工工艺过程卡片.doc 56.00 KB说明书.doc 596.50 KB");