NQ Reaming shell we can provide1. AQ rod, BQ rod, ... drilling grouting; (They are the AQ, BQ, NQ, HQ, PQ, BQ3, NQ2, NQ3, HQ3, PQ3, TNW, NMLC, HMLC, ... T2 101, T6 131, T6 146...)3. Diamond reaming shells for exploration mining and dam drilling grouting; (They ... are the AQ, BQ, NQ, HQ, PQ, BQ3, NQ2, NQ3, HQ3, PQ3, TNW, NMLC, HMLC, ... . Core lifter and core lifter case; NQ Reaming Shell