GB/T 13932-2016 Cast iron swing check valves

GB/T 13932-1992 General purpose industrial valves—Cast iron swing check valves

GB/T 152.1 GB/T 152.4 GB/T 1184-1996 Geometrical tolerancing—Geometrical tolerance for features without individual tolerance indications GB/T 152.2-2014 Fasteners—Countersinks for countersunk head screws GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 229-1994 Metallic materials—Charpy notch impact test GB/T 229-2007 Metallic materials—Charpy pendulum impact test method GB/T 229-2020 Metallic materials—Charpy pendulum impact test method GB/T 1348-1988 Spheroidal graphite iron castings GB/T 1348-2009 Spheroidal graphite iron castings GB/T 1348-2019 Spheroidal graphite iron castings GB/T 9439-1988 Grey iron castings GB/T 9439-2010 Grey iron castings GB/T 9439-2023 Grey iron castings 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 12226-1989 General purpose industrial valves—Specification of flake graphite iron castings GB/T 12226-2005 General purpose industrial valves—Specification of flake graphite iron castings GB/T 12227-1989 General purpose industrial valves—Specification of spheroidal graphite iron castings GB/T 12227-2005 General purpose industrial valves—Specification of spheroidal graphite iron castings 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 GB/T 17241.6-1998 Integral cast iron pipe flanges GB/T 17241.6-2008 Integral cast iron flanges GB/T 17241.7-1998 Specifications for cast iron pipe flanges JB/T 5300-2008 Guidelines for selecting materials for industrial valves JB/T 7928-2014 Industrial Valve Supply Requirements JB/T 7945.1-2018 Mechanical Properties Test Method for Grey Iron - Part 1: Tensile Test Method JB/T 7945.2-2018 JB/T 7945.2-2018 - Grey iron mechanical properties testing method Part 2: Flexural test results JB/T 5300-1991 JBT 5300-1991 General valve materials JB/T 5300-2024 Industrial valve material selection guideline JB/T 7928-1999 JBT 7928-1999 General valve Supply requirements GB/T 152.3-1988 Fasteners--Counterbores for hexagon socket head screws and slotted cheese head screws JB/T 7945-1999 Methods for testing the mechanical properties of grey cast iron GB/T 12221-2025 Metal valves—Face to face,end to end,centre to face and centre to end dimensions GB/T 12226-2025 General purpose industrial valves—Technical specification for gray iron castings GB/T 12227-2025 General purpose industrial valves—Technical specification for ductile iron castings