... , Low Si : 15% 3, Much Competitive Price Milled Ferro Silicon Powder:Our Milled Ferro Silicon Powder is used as Heavy Media for Dense Media ... : 0-8%Available Sizes: 48D, 65D, 100D, 150D, 270D, 48MESH, 65 MESH, 100MESH, 200 MESH etc. Any other Sizes are available ... / big bag, or packed as your request.We supply our Ferro Silicon Powder to South Africa, Zimbabwe, Botswana, Russia, Mid East etc ...