I-Wafer Butterfly Valve kanye ne-Flange Butterfly Valve yizixhumanisi ezimbili.Ngokwentengo, uhlobo lwe-Wafer lushibhile, intengo icishe ibe ngu-2/3 weFlange.Uma ufuna ukukhetha i-valve engenisiwe, ngangokunokwenzeka ngohlobo lwe-Wafer, intengo eshibhile, isisindo esilula.Ubude be...
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