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Hunan channel gate manufacturer supply sales phone number, Changsha agency unit high-end channel gate customized wholesale sales center, Changsha Changde Yiyang Huaihua Zhuzhou Xiangtan Xiangxi channel gate smart card manufacturer supply phone number Changsha Sihai Electronic Technology Co., Ltd., professional intelligent card channel gate, wing gate Changsha Sihai Electronic Technology Co., Ltd. is a high-tech enterprise that focuses on the development of high-tech channel equipment products and integrates production and project systems. The production base is located in Shenzhen, a special economic zone. It is a high-tech enterprise focusing on the research and development and design of intelligent channel equipment and electronic ticket intelligent management systems. It is one of the earliest enterprises in this industry in China. With abundant funds and strong technical force, the company adheres to the business path of "scientific equipment and efficient service". We provide one-stop services from the production of intelligent channel equipment, to the development of software and hardware application systems, to final project implementation, training, and after-sales service support.