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Dongguan Yijiaan Technology Co., Ltd. is a powerful enterprise engaged in the R & D and production of intelligent anti - theft locks and security supporting products. It mainly deals in a full range of access control and security supporting products, such as magnetic locks, electric mortise locks, electric control locks, motor locks, access control power supplies, access control machines, lithium batteries, switching power supplies, etc., meeting the application needs of various security scenarios in one - stop service. The company owns the brand trademark of "Chengnuoan" and has launched the "Chengnuoan" brand in the market. It focuses on technological innovation, continuously independently develops a series of products, and has a number of national patents. The company has gathered a group of engineering and technical talents with strong dedication, rich experience and professional ethics, and formed a team that loves their jobs and adheres to the concept of putting users first. We always take high - quality service as the core tenet, and build a full - process, integrated exclusive pre - sales and after - sales service system to provide customers with support from demand docking to after - sales guarantee. Relying on its strong technological R & D strength and perfect service mechanism, the company's independently developed full - range access control products combine both appearance and excellent quality. With stable performance and considerate service, it stands out in the high - tech intelligent security field and has won wide recognition in the market and unanimous praise from customers.