... Gas, Water, Sewage Material listNO.Name of PartsMaterial1Shaft O-RingNBR, EPDM, VITON2BodyCast Iron Nickel Plated3DiscAluminium BronzeDuctile Iron ... Nickel Plated4Disc O-RingNBR, EPDM, VITON5Hexagon NutY1Cr13,SS4166O-RingNBR, EPDM, ... disc and easy to be replace.Different O-ring is for different temperature and medium.Standard ...
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