... 0.025 we offer 100mesh, 200mesh, 300mesh, 400 mesh,500 mesh and so on.PACKING AND STORAGE Iron barrel or plastic bag package ... .Carefully keep away from moist and damp.Store in dry and ventilating place.APPLICATION:Widely used in manufacturing ... , diamond grinding wheels, bronze filters, and also used as the additives of rubbers and plastics, and in the production of chemicals. Lead ...