Revenue from the sales of refrigeration oils, or fluids that absorb or release heat and provide lubrication to compressors, is set to grow at a compound yearly rate of 6 percent through 2025 in the Asia-Pacific region, according toTransparency Market Research. A record 7 million used cars were sold in China last year, according to Feng Bin, a director ofChina Auto Dealers Chamber of Commerce. Many were sold from coastal regions to smaller cities in western provinces, where demand for aftercare services and products may pick up in coming years as a result.