Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YB/T 4239-2010 Ferrosilicon nitride 480.0 via email in 1~3 business day valid
GB/T 25050-2010 Ferronickel ingots or pieces—Sampling for analysis 315.0 via email in 1~3 business day valid
GB/T 5683-2008 Ferrochromium 120.0 via email in 1~3 business day valid
GBN 172-1982 via email in business day superseded
YB/T 065-1995 Silicon-aluminium alloy 60.0 via email in 1~3 business day abolished
YB/T 5358-2008 Ferrosilicon-barium 75.0 via email in 1~3 business day valid
GB/T 18249-2000 Ferroalloys-Experimental methods for checking the bias of sampling and sample preparation 210.0 via email in 1~3 business day valid
GB/T 3648-2013 Ferrotungsten 150.0 via email in 1~3 business day valid
GB/T 3649-1987 Ferromolybdenum 15.0 via email in 1~3 business day abolished
YB/T 4140-2005 Extra low carbon ferromanganese 105.0 via email in 1~3 business day valid
YB/T 067-1995 Silicon-calcium-barium-aluminium alloy 60.0 via email in 1~3 business day abolished
YB/T 5304-2011 Vanadium pentoxide 144.0 via email in business day abolished
GB/T 25049-2010 Ferronickel 180.0 via email in 1~3 business day valid
YB/T 053-2000 Cored wires 204.0 via email in business day abolished
GB/T 3795-1996 Ferromanganese 75.0 via email in 1~3 business day abolished
GB/T 7737-1997 Ferroniobium 30.0 via email in 1~3 business day abolished
GB/T 4138-1993 Rare-earth ferrosilicomagnesium 180.0 via email in business day abolished
GB/T 2774-2006 Manganese metal 120.0 via email in 1~3 business day valid
GB/T 28369-2012 Ferroalloys—Experimental methods for the evaluation of the quality variation and methods for checking the precision of sampling 200.0 via email in 1~3 business day valid
YB/T 4135-2005 Nitride ferrochrome with high nitrogen content 90.0 via email in 1~3 business day abolished
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