Granulated tungsten powders vary from normal W powder in that the material is processed by pressing, sintering, and crushing tungsten to make coarser mesh dimension particles. Molybdenum Disulfide is dry/stable lubricant powder, also called the molybdenite (principal ore from which molybdenum metallic is extracted) and it has the chemical method https://3d-printing48046.post-blogs.com/50400598/the-2-minute-rule-for-spherical-niobium-powder