Bonwin Technology Co., Ltd. Specializes in the production of Hotel Card locks, Smart Card locker locks, Hotel management software, Sauna management software, Safe Box, Access control systems,Electronic switch etc.Our factory located in Chang Zhou City of Jiang Su Prince, where is near by the Shanghai and easy for export.Since established in 2003, we always focused on the development and application of intelligent locks and management software. Warmly welcome all customers cooperate with us!Contract Manufacturing: OEM/ODM Service Offered Less