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95% 90% 80% 60% 50% Al2O3 Brown Fused Alumina Corundum Aluminium Oxide, Find Details and Price about Brown Aluminum Oxide Brown Fused Alumina from 95% 90% 80% 60% 50% Al2O3 Brown Fused Alumina Corundum Aluminium Oxide - Dengfeng Ruite New Materials Co.,Ltd.