ob lub plhaub sab nraud core chim

Lus piav qhia luv luv:

Qhov chaw ntawm Keeb Kwm: Suav teb
Hom Lub Npe: JCDRILL
Model Number: BTW NTW HTW PTW
Hom: Nto Core Drilling
Khoom siv: Hlau
Siv: kev tshawb nrhiav core drilling
Ntev: 1.5m 3m
Lub npe: TW Series Core Barrel