1.Granularity:20mesh to 400 mesh 2.Application:spray,powder metallurgy,fireworks(pyrotechnics),ect. 3.Technique: (HDH) Product name: , UN UNNO.2546Specifications: -20 mesh, -40mesh, -60mesh, -100 mesh, -150 mesh, -200 mesh, -250 mesh, -325 mesh, -400 meshPhysical Properties:a. Dark gray amorphous powder, boiling point 3000 °C, melting point 1668 °C ± 2 °C, insoluble in water and organic solvents ...