... emery,Brown corundum 1) High Al2O3 Content: 95%min 2) Professional manufacturer on BFA 3) High Quality 4)Prompt Delivery emery, ... Brown corundum 1) High AL2O3 content: 95%min 2) ... used in anti-wear runways, high-temperature coating matrix and metallurgy, chemical industry, and other high-level furnace refractories. Technical ...