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rg:2012-04-09 11:09Դ:δ֪ :admin c:
ָ ܶ:266g/cm3 :≤1.0% ܶ:1.85 g/cm3 ĥp:≤1.0% :≤2.5% MnO2:30-40% ˮVϵ ȻiɰһN܏܌ˮжrFˮFi^bˮFiˮ|ʹ gָ MnO2:35-46% ܶ:3.6g/cm3 Fe:20% :2.3g/cm3 SiO2:17-20% MnL2:12-22% :≤1.0% ĥp:≤3% :≤3%