1.All sizes 0-2000mesh 2.Powder and sheet 3.Black colour 4.Process:dry and wet method 5.Industrial usage Series ... : Muscovite, Phlogopite, biotite, sericite, wet ground and dry groundSize: 20mesh, 40mesh, 60mesh, 80mesh, 100mesh, 200mesh, 325mesh, or ... ceramics products.(3) It can be used in fire-fighting dry powder, protecting layer of welding rods, conducting wires and electric ...