About Changyouyi

Brand Story

Nanjing Changyouyi Analytical Instrument Co., Ltd. is a professional manufacturer and R&D developer of metallurgical analytical instruments in China. The company integrates R&D, manufacturing, sales, training, maintenance, and technical consulting.

Our core products include molten metal temperature meters, carbon and silicon analyzers, thermal analysis systems, spectrometers, and laboratory testing equipment. Our solutions are widely used in steel mills, foundries for cast iron, copper casting, aluminum casting, machining workshops, research institutes, and quality control laboratories worldwide.