Changshu Tianyin Electromechanical Co.,Ltd engages in the research and development, production, and sale of refrigerator compressor supporting parts in China. The company offers overheat overload protectors; PTC starter relays; junction boxes for various refrigeration appliances; current start relays; starter protectors; plastic suction silencers for various refrigerator compressors; plastic compression spring support seats; and refrigerator compressor frequency conversion controllers. It also provides radar and aerospace electronics products, such as radar radio frequency simulation systems, ultra-wideband signal capture and analysis systems, and star sensors. The company was founded in 2002 and is headquartered in Changshu, China.