- Drawwork Disc brake
- 2016-11-02 09:32
- 1.The product we supplier is the hydraulic disc brake device, which is the first product of the kind domestic and the le
- drill collar
- 2016-10-26 02:03
- drill collarsNo.ODIDLengthmmDFmmBendingintensityratiomminmminNC23-3179.431/831.811/4915076.22.57:1NC26-3588.931/238.111/
- key seat reamer
- 2016-10-24 05:08
- key seat reamerModel JKQ key seat reamer is a downhole tool which is designed to destroy and finally eliminate the key s