... , High reliability 2. competitive price 3.safe operating industrial chillers 1.cold storage refrigeration units; 2.High reliability and safe ... refrigerang of R404a, R507 and R22. Just change the refrigerating oil. can be used in any low temprature of cold room ... .Our customers:KFC, McDonalds, 3M, IKEA, Rohm & Haas. industrial chillers