Frame: plate type channel steel welded with green paint color. Surface.

机架：板型槽钢与钢板焊接而成。表面油漆颜色为绿色。

youdao

Frame: plate type channel steel welded with green paint color. Surface.

机架：板型槽钢与钢板焊接而成。表面油漆颜色为绿色。

youdao