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gn headquarter add: guoneng building, no.10, hongwan rd., hongwan industry park, nanping, xiangzhou dist., zhuhai, china (mainland)
tel: +86 (756）3917 939
fax: +86 (756）3917 900
e-mail: market@zhgn.com
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zip code：519060
e-mail：market@zhgn.com
