BQ NQ HQ PQ water swivel and hoisting plug,any size sub, (standard and heavy duty), through testing and certification

China Drilling Geological Equipment ltd., is the professional manufacturer of drilling tool in china, and specializing in the design and manufacture of premium diamond drilling tools for the world engineering: geotechnical exploration, Mining exploration, Oil exploration and hydrapower station grouting project ( wireline core drilling and double-tube core drilling)

1. Drill rod: BQ, NQ ,  HQ, PHD, BT, NT, HT  and AW BW NW HW

    Casing tube: BW NW HW HWT

2. Core barrel: BQ NQ  NQ2 NQ3 HQ HQ3 PQ PQ3 head assembly and core barrel parts  

3. AQ BQ NQ HQ PQ T2 T6 etc. Diamond core bit, reaming shell & shoe bit (syn. and surface-set, PDC)

4. Drill tool: hoisting plug water swivel overshot outer tube & inner tube wrench foot clamp  etc.  Through testing and certification