| |
|
|
- Casing Head, Tubing Head
- Casing Head Casing head is used to fixed well drilling wellhead, connectingwellhead casing string , to support the gravity of the technology of casing and casing, seal the annular space between the tubes of each layer, to install anti preventer, tubing he
-
Shaanxi Gaoton Petroleum Machinery Co.,Ltd
[Verified]
|
|
Negotiable
|