April 28, 2011, Canada Border Services Agency announced, originating in China and China Taiwan carbon steel and stainless steel fasteners mid-term review of anti-dumping investigation to determine the main contents of the product concerned for the re-normal value and export price .

     April 28, 2004, the Canadian Border Services Agency originated in China and China Taiwan carbon steel and stainless steel fasteners for anti-dumping and countervailing duty investigations, customs codes for products involved 73181100,73181200,73181400,73181500 and 73181600 2004. December 9, the Canadian Border Services Agency to make final ruling on the case, ruled mainland China enterprises involved in the dumping margin of 3.46% ~ 170%

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