Qhov chaw ntawm Keeb Kwm: Suav teb Hom Lub Npe: JCDRILL Qauv nab npawb: BQ3, NQ3, HQ3, PQ3, SQ3 Hom: Core Drill Bit Khoom siv: pob zeb diamond Siv: tshawb nrhiav xyaum Drill khoom: pob zeb diamond ntsis