please see our current product list as below:
1. Impregnated diamond core bits
2. Surface set Diamond Bits(coring bits and non-coring bits)

3. Casing(Rod) shoes/Casing bits
4. Reaming shells
5. PCD bits (coring or non-coring)

6. Core lifters, core lifter cases
7. Diamond circle wrench
8. Core barrel and accessories,BQ, NQ, HQ and PQ(Inner & Outer Tube,Head assembly,Locking
Coupling,Adaptor Coupling,Inner Tube Stabilizer Ring,Landing Ring,Landing Shoulder etc)

9. NQ&HQ overshot.
10. BQ, NQ, HQ, PQ, NT, HT, PT drill rods and BW, NW, HW, PW casing.
* Above bits and reaming shells conform to Metric,DCDMA,CDDA standards.
* We can manufacture all kinds of bits and shells according to customer's special requirement.