... is located in Yongyang Industrial Park, Lishui, Nanjing with an area of 20000 square meters, mainly manufacturing heat exchangers; another ... is in No.36, Runqi Road, Jiangning, Nanjing with an area of 4000 square meters, mainly producing refrigeration units). It also ... leak-off happened, there will has orange foam.Package: 12*280ML Comstar tracer liquid of system with leak-off orange boiling point