Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 1591-2018 High strength low alloy structural steels 285.0 via email in 1 business day to be valid
GB/T 3077-1999 Alloy Structure Steels 80.0 via email in 1 business day abolished
GB/T 3086-1982 Specification for high carbon chromium stainless bearing steels 295.0 via email in business day abolished
GB/T 4223-2017 Iron and steel scraps 220.0 via email in 1~3 business day valid
GB/T 17107-1997 Structural Steel Grades and Mechanical Property for Forgings 120.0 via email in 1 business day valid
GB/T 3203-2016 Carburizing steels for bearing 120.0 via email in 1 business day valid
YB/T 4032-2010 Kyanite Andalusite Sillimanite 164.0 via email in business day valid
SN/T 1733.1-2006 Rules for the inspection of non-prime steel material-Part 1:Steel slab 105.0 via email in 1~3 business day valid
GB/T 20878-2007 Stainless and heat-resisting steels—Designation and chemical composition 100.0 via email in 1 business day valid
GB/T 35840.1-2018 Steels for plastic mould―Part 1:Non-alloy steels 140.0 via email in 1~3 business day valid
GB/T 222-2006 Permissible Tolerances for Chemical Composition of Steel Products 40.0 via email in 1 business day valid
GB/T 221-2000 Notations for designations of iron and steel 120.0 via email in 1~3 business day abolished
GB/T 1221-2007 Heat-resistant steel bars 220.0 via email in 1 business day valid
GB/T 17616-2013 Unified Numbering System for Designation of Iron, Steel and Alloy 620.0 via email in 1~3 business day valid
GB/T 1220-2007 Stainless steel bars 130.0 via email in 1 business day valid
GB/T 24595-2009 Steel bar for quenched and tempered automotive crankshaft 180.0 via email in 1~3 business day valid
GB/T 13304.1-2008 Steels classification - Part 1: Classification of according to chemical composition 40.0 via email in 1 business day superseded
GB/T 34560.2-2017 Structural steels―Part 2:Technical delivery conditions for structural steels for general purposes 255.0 via email in 1~3 business day valid
GB/T 34564.1-2017 Cold-word mould steel - Part 1: High toughness and wear-resistance steels 220.0 via email in 1~3 business day valid
SN/T 1733.2-2006 Rules for the inspection of non-prime steel material-Part 2:Prepainted steel sheet 105.0 via email in 1~3 business day valid
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