... Suitable for making tools for various stones, fine glass, ceramic and magnetic materials, etc.MGD80:Consist of blocky cubo-octahedral ... cure stone and process car glass, high grade furniture, ceramic, alloy, magnetic materials, etc.MGD70:It contains a high level ... . Suitalbe for electroplated tools to grind and polish stones, ceramic, glass and magnetic materials, etc.MGD50:Medium strength, contain ...