... purity , low carbon content,good compressibility.APPLICATIONMainly used for low density powder metallurge, soft magnetism powder products. ... irregular form.Extremely fine,high purity.APPLICATIONMainly used for diamond tools, the rubber and plastic injects products and ... irregular form.Extremely fine,high purity.APPLICATIONMainly used for diamond tools, metal alloy, soft magnetism powder products and ...