Content Start Guangdong Zhonghan Testing Technology Co., Ltd. Address：201, No.438, Donghuan Road, Xiner Community, Xinqiao Street, Baoan District, Shenzhen Contacts：Wang Peng Telephone：0755-27782934 Email：alex_wang_boke@163.com QQ：405705201 Mobile phone：13826019495 Micro signal：wp19940320