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Electric ventilation butterfly valve
Nominal: PN0.05 ~ 0.6Mpa
Nominal diameter: DN300 ~ 4000mm
Drive: pneumatic, electric
Medium: cold air, flue
design criteria: GB / T12238-1989 JB / T8692-1998
flange dimensions: GB /T9115.1-2000
Structure length: GB/T12221-1989
Pressure test: GB/T13927-1992; JB/T9092-1999
Product details

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