... matrix(C45). Feature:wear-resisting,sand and matrix is inseparable and not eary drop.And it keeps sharp and works long. Surface finishment: matrix ... ,sandblasting glass,patterned glass,wire glass,hollow glass,laminated glass and glass block.grit size from 80 to 120, it is not ... edge with a high speed.The glass will be bright and clean after finishing. (2)Granite,basalt,limestone,dolomite,sandstone , ...