GB/T 15601-2013 Metallic envelope gaskets for pipe flanges

GB/T 15601-1995 Metallic envelope gaskets for pipe flanges

GB/T 539-1995 Oil-resisting asbestos-rubber sheets GB/T 539-2008 Oil-resisting compressed asbestos fibre jointing GB/T 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels GB/T 2040-2002 Sheet of copper and copper alloy GB/T 2040-2008 Sheet of copper and copper alloy GB/T 2040-2017 Copper and copper alloy sheet GB/T 2072-1993 Nickel and nickel alloy strips GB/T 2072-2007 Nickel and nickel alloy strips GB/T 2072-2020 Nickel and nickel alloy strip and foil GB/T 2520-2000 Cold-reduced electrolytic tinplate GB/T 2520-2008 Cold-reduced electrolytic tinplate GB/T 2520-2017 Cold-reduced electrolytic tinplate GB/T 3003-2006 Refractory—Ceramic fibre and the products GB/T 3003-2017 Refractory fibres and the products GB/T 3280-1992 Cold rolled stainless steel sheets and plates GB/T 3280-2007 Cold rolled stainless steel plate, sheet and strip GB/T 3280-2015 Cold rolled stainless steel plate, sheet and strip GB/T 3621-1994 Titanium and titanium alloy sheet and plate GB/T 3621-2007 Titanium and titanium alloy plate and sheet GB/T 3621-2022 Titanium and titanium alloy plate and sheet GB/T 3880.1-2006 Wrought aluminium and aluminium alloy plates,sheets and strips for general engineering—Part 1:Technical conditions of delivery GB/T 3880.1-2012 Wrought aluminium and aluminium alloy plates,sheets and strips for general engineering—Part 1:Technical conditions of delivery GB/T 3880.1-2023 Wrought aluminium and aluminium alloy plates,sheets and strips for general engineering—Part 1:Technical conditions of delivery GB/T 3985-1995 Asbestos-rubber sheets GB/T 3985-2008 Compressed asbestos fibre jointing GB/T 5235-1985 Wrought nickels and nickel alloys—Chemical composition and forms of wrought products GB/T 5235-2007 Wrought nickel and nickel alloys—Chemical composition and forms of wrought products GB/T 5235-2021 Designation and chemical composition of wrought nickel and nickel alloy GB/T 6983-1986 Technical requirements for magnetic iron bars GB/T 6983-2008 Soft magnetic iron GB/T 6983-2022 Magnetic iron GB/T 12385-1990 Test method for sealing characteristics of gaskets for pipe flanges GB/T 12385-2008 Standard test method for sealability of gaskets for pipe flanges GB/T 12622-1990 Test method for compressibility and recovery of gaskets for pipe flanges GB/T 12622-2008 Standard test method for compressibility and recovery of gaskets for pipe flanges JB/T 6628-2016 Flexible graphite composite reinforced (plate) gasket JB/T 7758.2-2005 JBT 7758.2-2005 Flexible Graphite Sheet - Technical Specification JC/T 69-2009 asbestos paper board JC/T 2052-2020 Roller pressing method of asbestos-free fiber sheet material JC/T 2052-2011 Rolling method non-asbestos fiber gasket material YB/T 5354-2012 Corrosion-resistant alloy cold-rolled plate JB/T 6628-1993 Flexible graphite composite reinforced (plate) gasket JB/T 6628-2008 Flexible graphite composite reinforced (plate) gasket JB/T 7758.2-1995 Flexible graphite sheet technical specifications QB/T 3625-1999 Polytetrafluoroethylene sheet GB/T 12385-2025 Standard test methods for sealability of gaskets for pipe flanges