Shandong Yuean Chemical Industry Co., Ltd: Refrigerant gas for refrigeration and air-conditioners systems. Application. Industrial and professional.The use of R600a and R290 hydrocarbons as refrigerant fluids has been consolidating itself and gaining space in the market. By representing, at the same time, a good solution from a technical point of view as well as a response to the need to cause less environment impact, they have been adopted by various refrigeration equipment manufacturers.