Opanga ma valve ku China: mvetsetsani nkhani yamakampani
Monga chida chofunikira pazachitetezo chamadzimadzi, ma valve amagwiritsidwa ntchito kwambiri m'mafakitale ambiri monga mafuta, mankhwala, zomangamanga, ndi kusunga madzi. Komabe, kwa opanga ma valve aku China, nkhani ya kupanga sidziwika bwino. Izi ndi...
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