hollow pipe
短语词组
- hollow w pipe 空心管子
- Hollow Copper Pipe 空心铜管
- hollow -pipe waveguide [电讯]空管波导
- hollow bored pipe 空心钻孔灌注桩
- hollow arbor pipe 空心管子
- hollow concrete pipe pile 空心管桩
- hollow wall pipe 空心壁圆管
- prestressed hollow concrete pipe pile 预应力空心管桩
- hollow pipe waveguide 空管波导 返回 hollow pipe