Hydraulic Winch Siv rau hauv Cretaceous Period Geological Research Drilling Project

Cov ntaub ntawv:Lub Caij Cretaceous Lub Sijhawm Geological Research Drilling Project
Kev Txhawb Nqa Khoom:Hydraulic Winch
Cov yam ntxwv ntawm cov khoom:Kev Npaj Cable Tsis Siv Neeg & Lub Peev Xwm Cable ntawm 6,500 Meters

Lub sijhawm tshaj tawm: Lub Yim Hli-24-2015