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    Zhejiang Gangdu Electronic Co.,Ltd

    Address: No.125 JianXin Road, QuZhou City , ZheJiang Province , P.R. China

    Http://www.coin-validator.com

    Email : sales@coin-validator.com 

    Mr. Walter.Chen 

    Tel &Fax : 86-570-3853888 

    Mobile/Wechat : 86-13616707412