Shanghai Sunny Elevator ASSembly Co.,Ltd, found in 1992, is a 21-year professional manufacturer specialiaing in designing and producing Opto-Electro-Mechanical products. Our main products are elector light curtains,photoelectric switches and elevator buttons. The company has a complete set of equipment andinstruments in terms of mechanism, sheetmetal,plastics,moulding,electric appliance,together with SMTl line, which are respectively used in key parts of production, assembling, and qualuty detecion. Such full range of equipments is rare in the field and greatly increases our production flexibility and R&D capabilities. Twenty years? experience in the elevator industry ensures us to provide our clients reliable products, leading-edge technology and perfect after-sales service.