... Purity: 99%, >=99.5% 3. Hexagonal and spherical 4. Lubricant additive Particle Size40-50nm, 80-100nm, 800nm, 1-15umPurity99%, >=99.5 ... box9. Radar antenna's mediums10. Rocket engine's components11. Additive Because of good lubricating property, it is used as high ... from boron nitride is a middle modulus high function fiber, inorganic synthesis engineering materials. It can be widely used in chemical ...