- spiral drill collar
- 2017-01-14 19:07
- The spiral drill collar is one of our product family
- 6 1/2"oil spiral drill collar
- 2017-01-14 19:07
- It reduces the contract area with the wellface and the steering resistance,which can prevent differential pressure stick
- NC46 R3 Heavy weight drill pipe
- 2017-01-14 19:07
- The HWDP's uses AISI 4145H alloy structural steel, the technique of production exactly carries on the SY/T5146-1997
- carbon tool steel
- 2017-01-14 19:07
- We are a professional enterprises, the production of the drill pipe products through the American petroleum institute au
- R3 Heavy weight drill pipe
- 2017-01-14 19:07
- The HWDP's uses AISI 4145H alloy structural steel, the technique of production exactly carries on the SY/T5146-1997
- drilling kelly
- 2017-01-14 19:07
- We are a professional enterprises, the production of the kellybars products through the American petroleum institute aut
- auger stem 02
- 2016-11-01 06:46
- The drill collar is according to SY/T5144-1997 and API 7-1Specification for Rotary Drill Stem Elements standard, the mat
- drill pipe tool joint
- 2016-10-25 17:38
- Tool joints of our company are turned and faced prior to heat treatment by the Quench and temper process to produce a un