油田專(zhuān)用閥門(mén) | ||
產(chǎn)品型號(hào):SZ43Y SZ63Y SZ83Y | ||
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產(chǎn)品引用標(biāo)準(zhǔn): JB/T5198-91管線用鋼制平板閘閥 Steel parallel plate valve for pipeline ANSI B16.5a-1992管法蘭管件 Pipe flanges and flange pipes GB/T13927-92通用閥門(mén)壓力試驗(yàn) Pressure test for universal valves JB/T9092-1999閥門(mén)的檢驗(yàn)與試驗(yàn) Valve inspection and testing JB/TQ814-89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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