Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Position: Search valid to be valid superseded to be superseded abolished to be abolished
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GB/T 12500-2008 Information technology - Open systems interconnection - Protocol for providing the connection-mode transport service via email in 1~10 business day valid
GB/T 12453-2008 Information technology - Open system interconnection - Transport service definition 405.0 via email in 1~5 business day valid
GB/T 16723-1996 Information technology - Protocol for providing the OSI connectionless-mode transport service 285.0 via email in 1~3 business day valid
GB/T 18231-2000 Information technology - Lower layers security model 295.0 via email in 1~3 business day valid
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