Alumina ceramic plate using high purity bauxite raw materials, alumina (Al₂O₃) content up to 99%, has excellent electrical insulation properties and good chemical stability.Alumina ceramics has good thermal stability, it can work in high temperature environment for a long time, alumina ceramic plate's high temperature resistance can usually reach more than 1600 ° C, suitable for use in high temperature environment, such as electronic components, heating elements. Alumina ceramic sheet has very low dielectric loss and high dielectric strength, widely used in electronics, semiconductors, communications and other fields of electrical insulation materials. 99% alumina ceramic sheet has high hardness and excellent compressive strength as well as strong abrasion and impact resistance, can withstand high physical pressure, suitable for use as structural materials. Alumina ceramic sheet has a wide range of applications in many fields such as scientific research experiments, electronic components, semiconductor devices, mechanical parts, electrical insulation materials, etc.