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TEL：0755-26490345
FAX：0755-26490245
E-mail : cgdzmarkrt@163.com
After-sales service：8009993929
Shenzhen Changgong Electronic Computer Co., Ltd. 
Address: Building C, Fenda High-tech Park, Hangcheng Street, Baoan District, Shenzhen, Guangdong, China
Post Code: 518126

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