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Address：Building H13, Phase III, Changchun Beihu Science and Technology Park, No. 3333, Shengbei Street, Beihu Science and Technology Development Zone, Changchun City
Phone： 0431-80534353 
Skype：extension@chemextension.com
Email：et@chemextension.com

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  • Address: Beihu Technology Development Zone, Changchun City
    No. 3333, Shengbei Street, Building H13, Phase III, Changchun Beihu Science and Technology Park Industry
  • Phone: 0431-80534353
    Email: et@chemextension.com
    ​Skype: extension@chemextension.com
     

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