A. Two civil cold storage facilities, each with 6 floors and 4 rooms on each floor, with a total storage capacity of 100000 tons. Adopting ammonia (R717) refrigeration system, with a double-layer smooth top pipe at the end and manual defrosting. The project is located in Pukou Economic Development Zone, Nanjing City, Jiangsu Province, and is an important component of the Jiangsu Yurun Food Industry Park, where the headquarters of Yurun Group is located.