GB/T 12754-2006 Prepainted steel sheet

GB/T 12754-1991 Coloured paint coat steel plates and strips

GB/T 12754-2019 Prepainted steel sheet and strip

GB/T 1766-1995 Paint and varnish—Rating schemes of degradation of coats GB/T 228-2002 Metallic materials—Tensile testing at ambient temperature 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 228.2-2015 Metallic materials—Tensile testing—Part 2:Method of test at elevated temperature GB/T 228.3-2019 Metallic materials—Tensile testing—Part 3:Method of test at low temperature GB/T 228.4-2019 Metallic materials—Tensile testing—Part 4:Method of test in liquid helium GB/T 247-1997 General rule of acceptance, package, mark and certification for steel plates(sheets) and strips GB/T 247-2008 General rule of package,mark and certification for steel plates(sheets)and strips GB/T 1839-2003 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products GB/T 1839-2008 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products GB/T 2975-1998 Steel and steel products—Location and preparation of test pieces for mechanical testing GB/T 2975-2018 Steel and steel products—Location and preparation of samples and test pieces for mechanical testing GB/T 13448-1992 Test methods for colour-coated steel plates and strips GB/T 13448-2006 Test methods for prepainted steel sheet GB/T 13448-2019 Test methods for prepainted steel sheet and strip GB/T 17505-1998 Steel and steel products General technical delivery requirements GB/T 17505-2016 Steel and steel products—General technical delivery requirements GB/T 247-2025 General rules of package, mark and certification for steel plate, sheet and strip GB/T 1839-2025 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products