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December 2005 through the ISO14001 certification (Chinese)
December 2005 through the ISO14001 certification (English)
December 2005 through ISO9001 re-examination (Chinese)
December 2005 through ISO9001 re-examination (English)


  
December 2005 through ISO9001 re-examination
December 2005 through the ISO14001 authentication
December 2005 through TS16949 certification