The rare earth is the abbreviation of rare-earth element (or calls the rare metal ). It is a big metal family made up of 17 kinds of elements. The rare earth was found and gained the name at the end of the 18th century.

Corundum series products, magnesia series products, zircon series products, silicon carbide series products, series products containing carbon, unshaped refractory series products of Xinwei

White powder, relative density 6. 0, square crystal . It is a very effective luminescence material in X ray , electron beam and ultraviolet ray 253.7nm.

The polishing powder is a kind of high-quality white polishing powder. Because the crystalline grain is meticulous and even , and the suspending is good, it can obtain high polishing efficiency under the low density . . .

Regenerator of glass melting kilns, the high-grade electrocast rebounded magnesia series, the magnesia-alumina spinal brick series, and the unshaped refractory material were appointed as recommendable products by Building Material Industry Association.