Shanghai Sunny Elevator Assembly Co.Ltd., was found in 1992, is a 23-year professional manufacturer specialized in designing and producing Opto-Electro-Mechanical products. Our main products are elevator light curtains, photoelectric switches and elevator buttons. The company has a complete set of equipment and instruments in terms of mechanism, sheet metal, plastics, moulding, electric appliance, together with SMT line, which are respectively used in key parts of production, assembling, and quality detection. Such full range of equipments is rare in the field and greatly increases our production flexibility and R&D capabilities. Twenty two years' experience in the elevator industry ensures us to provide our clients reliable products, leading-edge technology and perfect after-sales service. Shanghai Sunny has been entitled shanghai high-tech enterprise for ten consecutive years and our self-developed SN-GM1 series infrared light curtain obtained national invention patent (NO.ZL01105213.9). It also obtained UL Certification (file No.E230770) in 1992 and CCC Certification in 2010, which are unique among our competitors. Our light curtain and photodiode switch series both have been authorized CE certification. In 2007, the platform screen door in Shanghai Metro line and its north extension of line one initially adopted infrared light curtain device provided by our company. Our long –time clients include Hyundai (served as OEM), Hitachi, Otis, Mitsubishi, Guangri Elevator etc.