... ,10-20mesh 2.Powder 100-1250mesh 3.USD400-800/MT 4.Process:dry and wet method ... Series: Muscovite, Phlogopite, biotite, sericite, wet ground and dry groundSize: 20mesh, 40mesh, 60mesh, 80mesh, 100mesh, 200mesh, ... 3) It can be used in fire-fighting dry powder, protecting layer of welding rods, conducting wires and ... also be used as a filler in degreasing agent of cosmetics, in insulating materials of high- ...