What product is 12A 13A 14A 15A 18A in abrasives?
Usually normal abrasives include white electrocorundum,brown electrocorundum,pink electrocorundum,black electrocorundum,zirconia electrocorundum ,black carborundum and green carborundum.
12A 13A 14A 15A 18A means brown electrocorundum,also called brown corundum,brown fused alumina,brown fused aluminum oxide and brown emery sand.
