Boron nitride powder is a ceramic material with excellent thermal conductivity, electrical insulation, and good chemical stability. The ceramic powder produced by Tianyuan Chemical has high purity, uniform particle size distribution, good electrical insulation and thermal conductivity. The lubricating powder can resist oxidation at a temperature of up to 900 ℃ in an oxygen atmosphere, and remains stable at 2800 ℃ under nitrogen protection. It is a material that conducts heat in ceramic materials above 530 ℃ and has good lubricity at high temperatures. It is an excellent high-temperature solid lubricant that is chemically inert to almost all molten metals and can withstand high temperatures up to 2000 ℃. Its molded products have excellent properties that are easy to machine.