... quality electroplated tools to polish and cure stone and process car glass, high grade furniture, ceramic, alloy, magnetic materials, ... electroplated tools to grind and polish stones, ceramic, glass and magnetic materials, etc.MGD50:Medium strength, contain ... load materials, like cemented carbide, ceramics, magnetic materials, glass, etc.MGD40, MGD30:Slightly friable abrasives. Suitalbe for economic ...