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Chinese National Standard List: Clay, light-weight material non-metal ore |
Title | Standard No. | Implemented On |
Inspection of bauxite for import and export-Determination of Fe2O3 TiO2 SiO2 CaO MgO content-Inductively coupled plasma atomic emission spectrometry | SN/T 0481.7-2007 | 2007-10-16 |
Ferri bauxite | YB/T 5280-2007 | 2007-7-1 |
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