The products is in recent years hi-tech development of new high temperature heating products, the products has high temperature strength high, and high temperature anti-erosion, and anti-oxidation, and thermal conductivity performance good, features, special applies Yu electric tunnel kiln, and electric push Board kiln, and muffle, and experiment furnace and the high temperature experiment furnace, and Crystal, and ceramic, and electronic components, and metallurgical, and glass refractory, ideal of high temperature sintering Shi essential of ideal fever components.