Add: No.8 of Hongnan Road, High-tech Zone, Zhengzhou, 450000, Henan, China
Tel: 86-371-67897895 /53761986/67897870
Fax: 86-371-63507390
E-mail: zzsigma@hotmail.com
Web: www.sigmachem.cn
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Add: No.8 of Hongnan Road, High-tech Zone, Zhengzhou, 450000, Henan, China: http://www.zzsigma.com 豫ICP备09031665号
Tel: 86-371-67897895/53761986/67897870 Add: No.8 of Hongnan Road, High-tech Zone, Zhengzhou, 450000, Henan, China
Web: www.sigmachem.cn