GB/T 26930.1-2011
ActiveCarbonaceous materials for the production of primary aluminium - Pitch for electrodes - Part 1:Determination of water content - Azeotropic distillation(Dean and Stark) method
原铝生产用炭素材料 煤沥青 第1部分:水分含量的测定 共沸蒸馏法
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