CRRC Qishuyan Institute Co., Ltd., established in 1959 and headquartered in Changzhou, Jiangsu, is a core R&D and manufacturing subsidiary of CRRC. Specializing in rail transit equipment and key components, it offers products such as gear transmission systems, vibration damping, precision casting, forging, welding, heat treatment, and precision molds. As a national high-tech enterprise, it boasts strong R&D capabilities and advanced manufacturing, delivering high-quality solutions globally and expanding into new energy and marine engineering sectors.