Shandong Guoleng Environmental Technology Co., Ltd. is a professional refrigeration product supplier and service provider. The company has joint ventures with well-known lubricating oil manufacturers. Its synthetic refrigerating oil (synthetic alkylbenzene, polyol ester/POE) is suitable for various new environmentally friendly refrigerants. The prospect is in line with the global development trend of environmental protection and unit energy efficiency. It can meet the technical requirements of various refrigeration equipment, air conditioners, and heat pump manufacturers, and is widely used in the market. It has provided long-term supporting cooperation and OEM products with many well-known OEMs.