Wogula ma valve apamwamba amafuna ma valve akulu akulu okhala ndi positi yoyimirira. Fakitale imodzi yokha ku China imatha kupanga zonsezi, ndipo mtengo wake ndi wokwera kwambiri. Pambuyo pa kafukufuku wamasiku ambiri, tidapeza njira yabwinoko kwa makasitomala athu: kulekanitsa kupanga ma valve ndi zolemba zowonetsera kukhala mafakitale awiri. Mwanjira imeneyi, tachepetsa bwino mtengowo ndi 30% kwa makasitomala athu.
Kupatula apo, kuonetsetsa kuti ma valve akugwira ntchito bwino ndi zizindikiro zowonetsera, timayang'anira ndondomeko yoyika ndikuyesa ma valve. Makasitomala athu adakhutitsidwa ndipo adagwirizana nafe kwambiri pambuyo pake.
Nthawi yotumiza: May-14-2013