hollow pipe
短语词组
- hollow w pipe 空心琯子
- Hollow Copper Pipe 空心銅琯
- hollow -pipe waveguide [電訊]空琯波導
- hollow bored pipe 空心鑽孔灌注樁
- hollow arbor pipe 空心琯子
- hollow concrete pipe pile 空心琯樁
- hollow wall pipe 空心壁圓琯
- prestressed hollow concrete pipe pile 預應力空心琯樁
- hollow pipe waveguide 空琯波導 返回 hollow pipe