document.write("说明书.doc 75.72 KB<br />工艺流程图.dwg 46.10 KB<br />机头.dwg 31.55 KB<br />管材.dwg 24.60 KB<br />车间布局图.dwg 107.26 KB<br />单螺杆挤出机装配图.dwg 56.14 KB<br />");