document.write("支架2.dwg 150.49 KB支架3.dwg 149.92 KB0.泵车臂架装配图.dwg 206.03 KB混泥土泵车臂架结构设计 图纸汇总.dwg 463.14 KB臂.dwg 145.29 KB底座.dwg 140.90 KB");