1. Cov huab cua ib txwm muaj: cov cuab yeej pneumatic, pob zeb xyaum, pneumatic picks, pneumatic wrenches, pneumatic sandblasting
2. Cov cuab yeej tswj thiab cov khoom siv automation, xws li kev hloov cov cuab yeej hauv cov chaw machining, thiab lwm yam.
3. Lub tsheb nres, qhib thiab kaw qhov rooj thiab qhov rais
4. Nyob rau hauv cov huab cua-dav hlau loom, compressed cua yog siv los tshuab weft yarn es tsis txhob ntawm shuttle
5. Khoom noj khoom haus thiab tshuaj lag luam, siv compressed cua kom agitate slurry
6. Pib lub cav loj marine diesel cav
7. Cua tunnel sim, underground passage ventilation, hlau smelting