White means 23A 24A 25A in Abrasives?
Abrasives usually includes white electrocorundum,brown electrocorundum,pink electrocorundum,black electrocorundum ,black carborundum and green carborundum.
23A 24A 25A means white electrocorundum,also called white fused alumina,white corundum,white aluminum oxide and white emery sand,which was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase α-Al2O3.
