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      ITʯӢɰ,ʯӢɰ,VʯӢɰ,ʯӢɰ,20-40ĿʯӢɰ,30-50ĿʯӢɰ

      • 831ֱ
      вW

      иʯӢɰ؟ι˾Qɡ2010λڏV΅^һнaN۲ʯӢɰďS
      ʯӢɰָˣ
      SiO298.5%, Fe2O3:0.08%~0.036% TiO2:0.05%
      Cr2O3:0.001% Al2O3:= 0.50%( - 0.1) H2O5% 
      0.71mm(24Ŀ) 0.5%
      С0.60mm(28Ŀ)0.105 mm(150Ŀ)92%
      С0.1mm(150Ŀ) 3%

      “ϵ҂

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