Flange Mtundu Gulugufe vavu
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Ma Valves Aakulu a Flange a Butterfly a M'mimba mwake
Ntchito ya valavu yamagetsi ya gulugufe ndikugwiritsidwa ntchito ngati valavu yodulira, valavu yowongolera ndi valavu yowunikira mu dongosolo la mapaipi. Imagwiranso ntchito nthawi zina zomwe zimafuna kulamulira kayendedwe ka madzi. Ndi gawo lofunikira kwambiri pakulamulira makina oyendetsera ntchito zamafakitale.
