Low density and light refractory material microsphere cenospheres Specification : Grade No.: TX GRADE TS GRADE TS-F GRADE SiO2 56-62% Al2O3 33-38% Fe2O3 2-4% CaO 0.2-0.4% SO3 0.1-0.2% MgO 0.8-1.2 K2O ...
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