... Seals, bearings, pump vanes, ball valve parts; To be used in refractory industry and metallurgical industry, e.g. kiln furniture ... Due to its high hardness and brittle granular, it is used as abrasive agent, grinding wheel, sandpaper etc. in abrasive ... metal; Other using; lightening arresters, wear components for paper-making machines, special seals for chemical processing industry, etc.Green Silicon ...