Chaw tsim tshuaj paus DBS - Kuv Central Lubrication Twj
Jianhe Chaw Tsim Tshuaj DBS - i Central lubrication twj tso ua kom txuag tau cov haujlwm hauv kev lag luam, muab cov kev daws teeb meem lubrication.
Cov ntaub ntawv txheej txheem
Tiv Tauj Peb
Jianhor muaj pab pawg paub tab tau npaj txhij los pab.