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Changsha Sihai Electronic Technology Co., Ltd./Zeng/Sales parking lot charging management system. Parking lot barrier system. Barrier equipment smart card parking lot management system. Smart card access control system. Smart card charging system. Intelligent patrol system. Intelligent barrier system. Automatic license plate recognition system for parking lots, parking lot gates, electric retractable doors, parking lot transportation facilities and other products. We always adhere to the principle of reputation-based, technology-based, quality-based, high-tech, and continuous innovation. .Provide customers with first-class products. Five-star. In an industry where opportunities and challenges coexist, the company will continue to strengthen its capabilities. As always, we will provide you with better products and professional, exquisite and perfect. Over the years, we have always Adhere to the principle of reputation-based, technology-based, quality-based, high-tech, continuous innovation, and provide customers with first-class products. Five-star. In an industry where opportunities and challenges coexist, the company will Continuously strengthen our capabilities. As always, we will provide you with better products and professional, exquisite and perfect products. 3 Zeng Jing