hollow section
短語詞組
- Hollow Steel Section 薄壁型鋼
- hollow -faced blade section 凹面翼斷面
- hollow section steel fence 空心鋼欄
- square hollow section columns 方管柱
- Square hollow section steel 方管鋼
- hollow section steel fencing 測孔千分尺
- square hollow section joints 方管節(jié)點 返回 hollow section