| Ort der Herkunft |
Jiangsu China (Mainland) |
| Marke |
Crown |
| Geben |
Core Barrel |
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,PTdrill rods and BW, NW, HW, PW casing.