document.write("上层.dwg 201.23 KB<br />下层.dwg 89.78 KB<br />升降轴.dwg 142.79 KB<br />单排连轮.dwg 32.95 KB<br />卷筒轴.dwg 143.66 KB<br />双排链轮.dwg 43.84 KB<br />总装配图.dwg 445.50 KB<br />横移轴.dwg 41.32 KB<br />设计说明书.doc 1.47 MB<br />车轮.dwg 26.62 KB<br />");