 |
| |||
| core barrel of double tube-swivel type (内管不动); double tube swivel type core barrel (内管不动); floating-tube core barrel (内管不动); swivel tube core barrel (内管不动); swivel type double tube core barrel (内管不动) | |||
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