Qhov chaw ntawm Keeb Kwm: Suav tebHom Lub Npe: JCDRILLTus Qauv Zauv: NQ3 HQ3 PQ3Hom: Nto Core DrillingKhoom siv: HlauSiv: kev tshawb nrhiav core drillingNtev: 1.5m 3mLub npe: Triple Tube Core Barrel