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 »  1996,Yuangong IUD was patented by State Patent Bureau ……

 »  In 1999, Yuangong IUD obtained the manufacture approval ……

 »  1998-2000，Yuangong IUD is the best one among 6 IUDs……

 »  2000, it got the 2nd prize of Science Award in Shandong……

 »  In 2000, Yuangong IUD was certified with the Quality ……

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