hollow section
短语词组
- Hollow Steel Section 薄壁型鋼
- hollow -faced blade section 凹麪翼斷麪
- hollow section steel fence 空心鋼欄
- square hollow section columns 方琯柱
- Square hollow section steel 方琯鋼
- hollow section steel fencing 測孔千分尺
- square hollow section joints 方琯節點 返回 hollow section