File name:JB∕T 5298-2016 Steel Flat Gate Valve for Pipeline
File name:GBT 26480-2011 Valve Inspection and Testing
File name:GBT 12237-2007 Steel ball valves for petroleum, petrochemical and related industries
File name:GBT 12224-2015 General requirements for steel valves
File name:GBT 9113-2010 Integral steel pipe flange
File name:GBT 8464-2008 Iron and copper threaded connection valves
File name:QSYTZ0426-2016 Inspection rules for valves, fittings and flanges
File name:GBT 12234-2007 Steel Gate Valve with Bolt Connection Cover for Petroleum and Natural Gas Industry
File name:GBT 12235-2007 Steel Globe Valves and Lift Check Valves for Petrochemical and Related Industries
File name:GBT 21385-2008 Metal Sealed Ball Valve
File name:JBT 308-2004 Valve Type Compilation Method
File name:GBT 12221-2005 Structure Length of Metal Valve
File name:GBT 12232-2005 General Valve Flange Connection Iron Gate Valve
File name:GBT 19672-2005 Technical Conditions for Pipeline Valves (6D)
