IValve yeButterfly yeWafer kunye neFlange Butterfly Valve zinxibelelwano ezimbini.Ngokwexabiso, uhlobo lweWafer luncinci, ixabiso liqikelelwa kwi-2/3 yeFlange.Ukuba ufuna ukukhetha ivalve evela kumazwe angaphandle, kangangoko kunokwenzeka ngohlobo lweWafer, ixabiso elincinci, ubunzima obulula.Ubude be...
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