design specification of ball valve:GB/T12237、JB/T7745,Structure Length GB/T12221、JB/T7745,joint flange JB/T79,Test and Inspection JB/T9092,Pressure and TemperatureGB/T9131,Product IDGB/T12220,Supply specification JB/T7928
3-type full bore ball valve
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3-type full bore ball valve detailed design specification of ball valve:GB/T12237、JB/T7745,Structure Length GB/T12221、JB/T7745,joint flange JB/T79,Test and Inspection JB/T9092,Pressure and TemperatureGB/T9131,Product IDGB/T12220,Supply specification JB/T7928 |