 |
| |||
| 旋阀 | |||
| 旋塞阀 | |||
| cock valve: 12 phrases in 8 subjects |
| Aviation | 1 |
| Compressors | 2 |
| Drilling | 1 |
| Engineering geology | 1 |
| Metallurgy | 1 |
| Shipbuilding | 1 |
| Solar power | 1 |
| Technology | 4 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips