1.Burglar alarm--use for all the products in shopping mall, super market and store against the theft 2. (1)various specification of High Chromium Cast  Grinding Balls    (2)High and Low chromium Alloyed Micro-Balls    (3)High and Low Chromium Alloyed Micro-Bars    (4)High and Low Chromium Alloyed Casting Bars    (5)Low Chromium alloyed Capsule Balls 3. various of handles