... rod, HQ rod, AW rod, BW rod and casing2. Diamond core bits for exploration mining and dam drilling grouting; (They are ... , T2 76, T2 86, T2 101, T6 131, T6 146...)3. Diamond reaming shells for exploration mining and dam drilling grouting ... )7. Natural diamonds core bits, synthetic diamonds core bits, PDC bits;8. Drilling rods;9. Core barrels;10. Core lifter and core lifter case; Core Lifter