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E-mail : sales@zzstdr.com

TEL : +86-0371-66681880

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Phone : +008615890688027

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Add : Industrial Developent Area,Xinmi, Zhengzhou,China

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In 2012, "national industry demonstration enterpri

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In 2012, "recommended" certificate to the National

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In 2011, credit degree of AAA by Zhengzhou Enterp