Z83Y 高壓平板閘閥

產品摘要:

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通用閥門壓力試驗 Pressure test for universal valves 　　JB/T9092-1999閥門的檢驗與試驗 Valve inspection and testing 　　JB/TQ814-89鋼制平板閘閥產品閥產品質量分