Guangdong koyu smart technology co. Ltd. Is one of china's leading manufacturers of smart door locks, producing the first chinese expatriate city of jiangmen, located in the pearl river delta, guangdong province, where china's first smart door was born. Corporate products are developed, produced, sold and maintained as one. The company introduced the smart door lock on foreign technology development in 1993, the magnetic doorlock in 1993, the ic doorlock in 1995, the induction doorlock in 2000, the electronic cabinet lock in 2003 and the fingerprint lock in 2006. Koyu is the vice-chairman of the chinese locker unit. The company has a strong team of intelligent products, all of which are self-researched to better control and improve product quality. The products that have been successfully marketed include magnetic door locks, ic door locks, tm door locks, sensor door locks, fingerprint locks, password locks, smart cabinet locks, smart safes, electrical switches, bed boards, etc. It ...