Pankhani ya uinjiniya wamafakitale, ma valve a mpira ndi zigawo zazikulu zomwe zimagwira ntchito yofunika kwambiri pakuwongolera kutuluka kwa zakumwa ndi mpweya. Ma valve awa amadziwika chifukwa cha kusinthasintha, kudalirika, komanso kuchita bwino, zomwe zimawapangitsa kukhala otchuka m'mafakitale osiyanasiyana. Kuyambira mafuta ndi gasi mpaka madzi...
Werengani zambiri