Wopanga ma valve agulugufe apamwamba kwambiri aku China: kufunafuna kuchita bwino, kusinthika kosalekeza
Ndi chitukuko chofulumira cha makina opanga mafakitale ndi nzeru, ma valve agulugufe amagwiritsidwa ntchito kwambiri mu petroleum, mankhwala, zitsulo, mphamvu zamagetsi ndi zina. Monga wopanga valavu agulugufe ku China, kufunafuna kuchita bwino ndi ...
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