✔ Hydraulic thiab pneumatic tswj system Ua kua theem ntsuas thiab tswj.
✔ Petrochemical, kev tiv thaiv ib puag ncig, cua compression, locomotive braking system.
✔ Lub teeb kev lag luam, machinery, metallurgy, lub tsev automation, tas li siab dej muab kev lag luam txheej txheem nrhiav kom tau thiab tswj, kuaj lub siab.pov thawj