high pure brown aluminum oxide abrasive is of high purity. high strength ,bigger brittle, good self-sharping . the advantage is high efficiency in cutting,grinding and well smooth finish .used for resin abrasive and coated abrasive. especially for processing wood and leather has very good effective. the supplied grit size ,f12-f220 p16-p220. rs vice-white fused alumina:chemical composition(%): al2o3:98.0%min fe2o3:0.5%max sio2:1.0%max tio2:1.2%max we have strict control about company & quality;our service is full-around and first-class. so we¡¯re you wise choice.don¡¯t hesitate to contact us helen(at)rs-abrasive.com contact person: ms. liang xiaofei(sales manager) tel:+86 379 65285888-0 13015581246 fax:+86 379 66285889