The most common natural minerals used in abrasives are emery and garnet, while four common manmade types are silicon carbide, aluminum oxide, ceramic alumina and alumina- zirconia.5 thg 7, 2019The most common natural minerals used in abrasives are emery and garnet, while four common manmade types are silicon carbide, aluminum oxide, ceramic alumina and alumina- zirconia.5 thg 7, 2019
Post a Comment