PROPERTIES Silver gray or Dark gray metallic luster powder. APPLICATION Be used in metal ceramics, hard alloys and diamond tools,etc. According to your demands, we offer100mesh, 200mesh, 300mesh, 400 mesh,500 mesh and so on. Average size D50 10um; D50 5um; D50 2um; D50 1um,and so on. High purity silicon powder Polysilicon powder 99%,99.9% ,99.95% ,99.99%, 99.995% 200mesh, 325mesh, 1000mesh, 3000mesh, 6000mesh, average size(D50) 10um , average size(D50) 5um , average size(D50) 2um 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.