Tsim tawm raws li qhov ntev, cov ces kaum, thiab cov hom kev sib txuas tshwj xeeb rau kev sib koom ua ke rau hauv cov kav dej nyuaj.

Cov ntawv thov

• Kev Tshawb Fawb thiab Kev Ua Cov Khoom Siv Mineral
• Cov Chaw Tsim Hluav Taws Xob thiab Kev Tswj Cov Tshauv
• Cov Hoobkas Ua Cement
• Cov Haujlwm Dredging
• Kev Lag Luam Hlau & Metallurgy

Peb lub luj tshib sib xyaw tau yooj yim nrog cov yeeb nkab sib xyaw uas tiv taus kev hnav, cov flanges txheem, lossis cov hom kev sib txuas raws li qhov kev thov.