Ma valve amagwiritsidwa ntchito kwambiri mu ballast, kumenyana ndi moto ndi machitidwe a mafuta a zombo ndi machitidwe opangira zombo.Amagwiritsidwa ntchito kunyamula gasi, nthunzi, slurry, petroleum, ndi zina zotero. Mavavu mumapangidwe a zombo kapena sitima zapamadzi angagwiritsidwe ntchito kutumiza, kuyimitsa, kusintha, kulamulira kutuluka, kusintha kutuluka kapena kupanikizika, ndi kutulutsa mphamvu.Monga...
Werengani zambiri