Sigma Elevator Shanghai Co., Ltd its factory located in Suzhou Economic Development Zone. It’s primarily responsible for Design, standardization and modernization of complete elevator, including passenger elevator, cargo and bed elevator, home elevator and escalator. Its R&D center consisting of many technical professionals. Its focused on the mechanical technology, electrical technology and up to date aesthetic design to satisfy customers need. Our products has passed international quality system certification, ISO 14001 environmental quality system certification and OHSAS 18001 occupational health and safety certification and strictly implemented in products and services. Its production capacity 7000 unites in a year. SIGMA has been serving over 20 countries.