slurry pump action in national economy mukudziwa? Pampu ya slurry imatsagana ndi chitukuko cha mafakitale. M'zaka za zana la khumi ndi zisanu ndi zinayi, mtundu wakunja ndi kufananitsa kosiyanasiyana kokwanira pampu yamatope, ndipo yakhala ikugwiritsidwa ntchito kwambiri. Malinga ndi ziwerengero, mu 1880, ambiri zolinga centrifugal slurry mpope ...
Werengani zambiri