設(shè)計制造標準:
JB/T5198管線用鋼制平板閘閥 Steel parallel plate valve for pipeline
ANSI B16.5a管法蘭管件 Pipe flanges and flange pipes
GB/T13927通用閥門壓力試驗 Pressure test for universal valves
JB/T9092閥門的檢驗與試驗 Valve inspection and testing
JB/TQ814鋼制平板閘閥產(chǎn)品閥產(chǎn)品質(zhì)量分等 Steel parallel plate valve products quality grades ranks
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