... .strong tenacity, 3.better bonding ability and hydrophilicity, Abrasive material Black Fused Aluminum Oxideblack aluminium oxide main chemical components of segment ... as:bicycles,sewing-machine,hard metal tools,medical apparatus, timepieces,glass products and stone grinding.2.It's also the right ... wheels, grinding wheels, sand cloth, paper and paste. Abrasive material Black Fused Aluminum Oxide