... , Production and sales Auto cutter Kunshan OSK precision tool limited company was founded in 2006, specializes in ... tungsten steel milling head, drill bits, reamers, cutting tool production and sales. Products are mainly used in aerospace, ... HELICHECK PRO/PLUSISO9001:2008K40 SERIESFollowing the HRC45 die steel, tool steelWALTER,ANCAZOLLER,TESTISO9001:2008AL SERIESAluminum, aluminum alloy, high ...