GB/T 22653-2008 Emergency shutoff valve for LG equipment

GB/T 1239.2-1989 JB 4727 JB 4728 GB/T 699-1999 Quality carbon structural steels GB/T 699-2015 Quality carbon structure steels GB/T 1047-1995 Nominal size for pipe components GB/T 1047-2005 Pipework components—Definition and selection of DN (nominal size) GB/T 1047-2019 Pipework components—Definition and selection of nominal size GB/T 1048-1990 Nominal pressure for pipe components GB/T 1048-2005 Pipework components—Definition and selection of PN GB/T 1048-2019 Pipework components—Definition and selection of nominal pressure GB/T 1220-1992 Stainless steel bars GB/T 1220-2007 Stainless steel bars GB/T 4240-1993 Stainless steel wires GB/T 4240-2009 Stainless steel wires GB/T 4240-2019 Stainless steel wires GB/T 9113.1-2000 Integral steel pipe flanges with flat face or raised face GB/T 9113.2-2000 Integral steel pipe flanges with male and female face GB/T 9124-2000 Specification for steel pipe flanges GB/T 9124-2010 Specification for steel pipe flanges GB/T 9124.1-2019 Steel pipe flanges—Part 1:PN designated GB/T 9124.2-2019 Steel pipe flanges—Part 2:Class designated GB 10478-1989 Specifications for liquid gas tank cars GB/T 10478-2006 Railway tank car for liquefied gases GB/T 10478-2017 Railway tank car for liquefied gases GB/T 12220-1989 General purpose industrial valves—Marking GB/T 12220-2015 Industrial valves—Marking GB/T 12221-1989 Metal valves for use in flanged pipe systems—Face-to -face and centre-to-face dimensions GB/T 12221-2005 Metal valves—Face to face,end to end,center to face and center to end dimensions GB/T 12230-1989 General purpose industrial valves—Specification of austenitic steel castings GB/T 12230-2005 General purpose industrial valves—Specification of stainless steel castings GB/T 12230-2023 General purpose industrial valves—Specification of stainless steel castings GB/T 12235-1989 General purpose industrial valves—Flanged steel globe valves and lift check valves GB/T 12235-2007 Steel globe valves and lift check valve for petroleum,petrochemical and allied industries GB/T 13927-1992 Pressure testing for general purpose valves GB/T 13927-2008 Industrial valves—Pressure testing GB/T 13927-2022 Industrial valves—Pressure testing JB/T 7248-2008 Low-temperature Steel Casting for Valve Components Technical Specification JB/T 7928-2014 Industrial Valve Supply Requirements JB/T 106-2024 JB/T 106-2024 - Valve labeling and painting JB/T 7248-2024 The technical specifications for low-temperature steel castings used in valves JB/T 7928-1999 JBT 7928-1999 General valve Supply requirements JB/T 106-2004 Valves marking and paint JB/T 308-2004 Valves model designation method JB/T 7248-1994 The technical specification for low-temperature steel castings used in valves GB/T 12221-2025 Metal valves—Face to face,end to end,centre to face and centre to end dimensions GB/T 12235-2025 Steel globe valves and lift check valve for petroleum,petrochemical and allied industries