Mtundu wapamwamba kwambiri wa valve yaku China: kusanthula kwapikisano pamsika
Ndi chitukuko chofulumira chachuma cha China, ma valve otsika kwambiri amagwiritsidwa ntchito kwambiri m'mafakitale ambiri, ndipo kufunikira kwa msika kukukulirakulira. M'nkhaniyi, ma valve ambiri otsika kwambiri atuluka, akukulitsa mpikisano wamsika. Pape iyi...
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