Nkhani
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Kafukufuku pa msika waku China wa valve
Pambuyo pazaka zachitukuko, tsopano China ili ndi mabizinesi opangira ma valve 6,000 omwe ali oyamba padziko lapansi. Vavu ngati zigawo zamadzimadzi kutengerapo zinakula mofulumira m'zaka zaposachedwapa pansi pa kukula kwa chuma cha dziko. Koma tidakali ndi ma valve ambiri apamwamba kwambiri omwe akufunika kuitanitsa kuchokera ku ...Werengani zambiri -
Ma valve a mpira Chiyembekezo cha chitukuko
Mavavu a mpira apeza ntchito yayikulu osati mu chitoliro cha mafakitale, komanso m'makampani a nyukiliya komanso makampani azamlengalenga. Titha kuyembekezera kuti valavu ya mpira idzakula kwambiri m'madera otsatirawa. 1. Zida zosindikizira. PTFE (F-4) ngati chosindikizira valavu ali pafupifupi 30 inu ...Werengani zambiri