Valavu yotchingira yotchingira yotchingira ndi mtundu wa valavu yotchingira yomwe imagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana kuti ilamulire kuyenda kwa madzi. Ili ndi mpando wa raba womwe umapereka chisindikizo cholimba ndikuletsa kubwerera kwa madzi. Valavuyi idapangidwa kuti ilole madzi kuyenda mbali imodzi pomwe ikuletsa kuyenda mbali ina. Chimodzi mwazinthu zazikulu za mavavu otchingira otchingira otchingira otchingira ndi rabara ndi kuphweka kwawo. Ili ndi diski yolumikizidwa yomwe imatseguka ndikutseka kuti ilole kapena kuletsa madzi kulowa...
Ntchito yathu iyenera kukhala yotumikira ogwiritsa ntchito athu ndi ogula ndi zinthu zapamwamba kwambiri komanso zopikisana pa digito komanso mayankho a Quotes a DN1600 ANSI 150lb DIN BS En Pn10 16 Softback Seat Di Ductile Iron U Section Type Butterfly Valve, Tikukulandirani kuti mudzagwirizane nafe munjira iyi yopangira kampani yolemera komanso yopindulitsa wina ndi mnzake. Ntchito yathu iyenera kukhala yotumikira ogwiritsa ntchito athu ndi ogula ndi zinthu zapamwamba kwambiri komanso zopikisana pa digito komanso...