... Core Lifter and Core Lifter Case1. AQ rod, BQ rod, NQ rod, HQ rod, AW rod, BW rod and casing2. Diamond core ... mining and dam drilling grouting; (They are the AQ, BQ, NQ, HQ, PQ, BQ3, NQ2, NQ3, HQ3, PQ3, TNW, NMLC, HMLC, T2 ... mining and dam drilling grouting; (They are the AQ, BQ, NQ, HQ, PQ, BQ3, NQ2, NQ3, HQ3, PQ3, TNW, NMLC, HMLC, T2 ...