Zhejiang GangDu Electronic Co.,Ltd.
Address: No.125 JianXin Road, QuZhou City , ZheJiang Province , P.R. China
Web : http://www.coin-validator.com/
Gmail : coindoors@gmail.com
skype: coindoors
sales@coin-validator.com
Mr. Walter.chen 
Tel &Fax : 86-570-3853888 
Mobile : 86-13616707412