... to 1600m. 2. Various mud pumps; 3. Diamond core drilling tools including: A. Diamond core bits (AQ, BQ, NQ, HQ, PQ, BQ3, NQ2, NQ3, HQ3, PQ3 ... drilling rod, BQ drilling rod, NQ drilling rod, HQ drilling rod, PQ drilling rod, AW drilling rod, BW drilling rod, Use Chinese Exploration material 45MnMoB, with heat treatment coupling and box. D. Core Barrel (AQ Core Barrel ...