... Park, Lishui, Nanjing with an area of 20000 square meters, mainly manufacturing heat exchangers; another is in No.36, ... Road, Jiangning, Nanjing with an area of 4000 square meters, mainly producing refrigeration units). It also has branch companies ... center) with Hefei General Machinery Research Institute. EC3-X33 series superheat controllerFeatures1.EC3-X32 Superheat control in conjunction with ...