Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 15019-2003 Designation and classification of rapidly quenched metals 60.0 via email in 1 business day valid
GB/T 14988-2008 Hysteresis alloy 180.0 via email in 1~3 business day valid
GB/T 15574-1995 Steel products classification and definitions 100.0 via email in 1 business day abolished
GB/T 14992-2005 Classification and designation for superalloys and high temperature intermetallic materials 450.0 via email in 1~3 business day valid
GB/T 20566-2006 Terminology of steel and alloy 270.0 via email in 1~3 business day valid
GB/T 15575-2008 Steel products standard designation 150.0 via email in 1~3 business day valid
GB/T 221-2008 Notations for designation of iron and steel 120.0 via email in 1 business day valid
GB/T 8731-2008 Free-cutting structural steel 120.0 via email in 1 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 valid
GB/T 28290-2012 Methods for determination of surface chromium on electrolytic tinplate 180.0 via email in 1~3 business day valid
GB/T 13304.2-2008 Steels Classification - Part 2: Classification of According to Main Quality Classes and Main Property or Application 140.0 via email in 1 business day valid
GB/T 15014-2008 Physical quantity terminologies and definitions of elastic alloy expansion alloy thermostat metal resistance alloy 420.0 via email in 1~5 business day valid
GB/T 1839-2008 Test method for gravimetric determination of the mass per unit area of galvanized coatings on steel products 80.0 via email in 1 business day valid
GB/T 18253-2000 Steel and steel products-Types of inspection documents 120.0 via email in 1~3 business day valid
GB/T 28291-2012 Methods for determination of surface oil on electrolytic tinplate 180.0 via email in 1~3 business day valid
YB/T 5056-1993 The general rules for inspection,packing,marking,certification and storing transpontation of steel nailns 75.0 via email in 1~3 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 15019-2003 Designation and classification of rapidly quenched metals 60.0 via email in 1 business day valid
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