Dongnan Elevator is the operator of vertical transportation system solution. After 20 years of innovation and development, it has become a partner in China\'s space industry. Civil elevator products using aerospace technology have become the preferred supplier of China\'s top 500 real estate development enterprises. Existing buildings are equipped with elevators as the engine IP in the field of urban renewal to promote innovation and upgrading of urban renewal industry. Dongnan Elevator will build a happy space to carry out the dream with more excellent products and excellent...