- HF series bit for hard formation drilling
- 2016-11-01 03:29
- HF series bit for hard formation drilling Hf series bit has the advantages of long service life, high reliability, fast
- MINI-MD ROLLER CONE BIT FOR SLIM HOLE DRILLING APPLICATION.
- 2016-10-25 18:45
- MINI-MD ROLLER CONE BIT FOR SLIM HOLE DRILLING APPLICATION.In addition to the feature of MD motor bit, Mini MD slim hole