Nkhani
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Makhalidwe a valve ya butterfly ndi kugwiritsa ntchito chidziwitso chaching'ono
M’zaka za m’ma 1930, dziko la United States linapanga valavu ya gulugufe, imene inayambika ku Japan m’zaka za m’ma 1950, ndipo siinagwiritsidwe ntchito kwambiri ku Japan mpaka m’ma 1960, pamene kukwezedwa ku China kunali pambuyo pa zaka za m’ma 1970.Pakali pano, mu dziko, awiri awiri ndi pamwamba DN30 ...Werengani zambiri -
《VALVE》Journal Gawo lachisanu ndi chimodzi la Technical Committee ndipo msonkhano woyamba unachitika ku Shanghai.
Pa November 26, 2021, gawo lachisanu ndi chimodzi la Technical Committee ndi msonkhano woyamba wa 《VALVE》 Journal unachitikira ku Jiading District, Shanghai.Msonkhanowu umathandizidwa ndi 《VALVE》Magazine ya Shenyang Valve Research Institute, ndipo wopangidwa ndi Valve B...Werengani zambiri -
Heavy News - Kugwiritsa ntchito bwino patent - "Metal sealed butterfly valve yokhala ndi ntchito yotumiza deta yakutali pa intaneti ya Zinthu"
Kuwonetsetsa chitetezo cha madzi okhalamo komanso kuthetsa madzi omwe amamwa m'tawuni, madzi komanso kugwiritsa ntchito madzi nthawi zonse kwakhala vuto la moyo.M'mbuyomu, ma valve omwe amagwiritsidwa ntchito paipi yamadzi amangogwira ntchito ngati chosinthira, kuyeza kuthamanga kwa chitoliro ndi malo a valve.Kuyesedwa kwa ...Werengani zambiri
