Company NPP Sintez ...and global warming by producing ozone-friendly refrigerants R600a, R290, R1270 as natural substitutes for HFCs R12, R22, R134, and etc. Our production is ISO 9001:2015 management certified. The capacity is 1500 MT annual... Russia · Refrigerants Company VIETNAM-KOREA PETROLIUM INDUSTRIAL GAS JSC ...ndly. Refrigerant Gases such as R134a, R404A, R407C, R507A, R600a, … which high quality and safety for usage as well as saving the environment. Vietnam · Refrigerants