At present, the refrigeration oil market is generally dominated by mineral oil, POE synthetic oil, and polyalpha olefins. Among them, POE synthetic refrigeration oil brands are currently mainly Ice Bear, CPI, Bitzer, York, Castrol, Carrier, and Firth. However, among these brands, only CPI is a refrigeration oil manufacturer. Castrol's focus has shifted to automotive oil. Bitzer, York, and Carrier all produce compressors, and the OEM oils are all produced by CPI. Emkarate, the original ICI, has now been acquired by CPI. Now, many domestic lubricant manufacturers can produce refrigeration oil that meets international standards. For example, the refrigeration oil customized by our company can maintain good low-temperature fluidity even at -120°C.