document.write("铲斗.dwg 135.63 KB动臂衬套合计3张图纸.dwg 121.44 KB动臂改进图纸.dwg 211.63 KB斗齿.dwg 99.50 KB斗杆.dwg 298.28 KB连杆合计2张.dwg 139.38 KB摇臂.dwg 59.91 KB总图.DWG 2.19 MB7英中文资料.doc 63.50 KB挖掘机工作机构的设计正文.doc 1.89 MB外文翻译.doc 247.50 KB");