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GB/T 25943-2010 Aluminium ores - Experimental methods for checking the precision of sampling (USD) via email in 1-3 business day VALID
GB/T 25949-2010 Aluminium ores - Preparation of samples (USD) via email in 1-3 business day VALID
GB/T 25948-2010 Aluminium ores - Determination of total iron content - Titanium trichloride reduction method (USD) via email in 1-3 business day VALID
YB/T 5057-1993 Technical requirements of bauxite (USD) via email in 1-3 business day VALID
YS 5029-1995 via email in VALID please email coc@codeofchina.com for quotation
GB/T 25944-2010 Aluminium ores - Experimental determination of the heterogeneity of distribution of a lot (USD) via email in 1-3 business day VALID
GB/T 25947-2010 Aluminium ores - Determination of the moisture content of bulk material (USD) via email in 1-3 business day VALID
GB/T 25946-2010 Aluminium ores - Experimental methods for checking the bias of sampling (USD) via email in 1-3 business day VALID
GB/T 25950-2010 Aluminium ores - Experimental determination of the heterogeneity of constitution (USD) via email in 1-3 business day VALID
GB/T 25945-2010 Aluminium ores - Sampling procedures (USD) via email in 1-5 business day VALID
YS/T 78-1994 via email in VALID please email coc@codeofchina.com for quotation
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