Shanghai Tongguan Hardware Co.. Ltd.

Shanghai Tongguan Hardware Co.. Ltd. was established in 1980s. Under the principle of continuous innovation. we have built up "TOPONE" brand door locks. Our main products are door lock sets. panic exit devices. alarming locks. door closers. floor hinges and hardware fittings. Since our company was established. we investigate and develop new locks continuously. Therefore. with advanced production equipment. and strict quality control system. our investigate technicians can run neck to neck with international factories in the world. In order to fulfill the demands of large business and improve the efficiency of production. we have established two filiales in mainland China since 1995. At present. "TOPONE" brand locks are popular in mainland China and overseas market. We always insist on the tenet of "Quality. Service. Efficiency and Satisfaction of Customers". We have gained the praise and affirmation of all customers in all aspects. and we are going ahead with stead operation thought.