标题:
- The 13th China International Petroleum & Petrochemical Technology and Equipment Exhibition (CIPPE) 2017-10-24
- The 12th Moscow International Oil & Gas (MIOGE) Exhibition 2017-10-24
- The 16th Abu Dhabi International Petroleum Exhibition (ADIPEC) 2017-10-24
- The 9th Oil & Gas Indonesia (OGI) Exhibition 2017-10-24
- The 10th ASCOPE Conference & Exhibition in Vietnam 2017-10-24
- Rational use of roller bit 2017-10-19
- Guide to the use of diamond drills 2017-10-19
- Making material of roller bit 2017-10-19
- How to replace damaged cone 2017-10-19
- A great deal of technical breakthroughs have made PDC bits become the backbone of drilling 2017-10-19