Electric wafer soft sealing butterfly valveMain spare partsMaterialSpecificationMain spare partsMaterialSpecificationValve bodyDuctile cast iron50mm~600mmValve shaftStainless steel50mm~600mmGray Cast ironCast steel45# carbon steelCast stainless steelValve plateStainless steel CF850mm~600mmValve seatEPDM50mm~600mmstainless steel CF8MNBRDuctile cast iron Ni-PPTEEDuctile cast iron nylonVitonAluminium bronzeSEP
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