1. Mining khoom: nruas shearer, lub ntsiab yam yog cov nruas, xaiv, reducers thiab thiaj li.
Plowing cov cav ntoo muaj xws li cov twj zais npog, cov dav hlau, cov qauv ntawm cov cuab yeej, cov cuab yeej sab nrauv (motors, sprockets, reducers), cov twj tua hluav taws hydraulic, thiab cov khoom ua si tsis zoo.
2. Kev them nyiaj yug khoom siv: hydraulic support, hydraulic prop, hinged to top sab saum toj, etc. Cov kev siv hydraulic yuav tsum tau hydraulic twj tso kua mis, txhua yam ntawm lub tshuab ua kom valve, hydraulic kev them nyiaj yug txog 60% ntawm cov khoom peev nyob rau hauv siab mechanized tsuas lub ntsej muag.
3. Cov khoom siv thauj khoom: cov khoom siv thauj khoom (cov khoom muaj xws li saw, scraper, nruab nrab zawj, hlua, kev sib txuas, sib txuas, thiab lwm yam), siv cov khoom siv thauj khoom, siv lub tshuab siv, tsheb, lwm yam
4. Crushing, kuaj, ntxuav khoom
