A na -etinye hose nrụgide ule na sistemụ hydraulic micro na nrụgide nnwale na sistemụ hydraulic.It nkọwapụta ya gụnyere ibu ibu. Nguzogide uwe, siri ike na nkwekọrịta nkwekọrịta, ezigbo mgbanwe. Enyi na enyi.na ihe ndị ọzọ.
Ọrụ mmiri: mmanụ ịnweta mmanụ, mmiri-glycol, mmanya, mmanụ ụgbọ ala, emulsions mmanụ, gas, wdg.