Vavu ya butterfly ndi mtundu wa valavu, yomwe imayikidwa pa chitoliro, yomwe imagwiritsidwa ntchito poyendetsa kayendedwe ka sing'anga mu chitoliro. Valve ya butterfly imadziwika ndi mawonekedwe osavuta, kulemera kwake, kuphatikiza chipangizo chotumizira, thupi la valve, mbale ya valve, tsinde la valve, mpando wa valve ndi zina zotero. Poyerekeza ndi ma valve ena ...
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