Changzhou Ruitai Construction Machinery Co., Ltd. is a high-tech enterprise in Jiangsu Province. It was established in June 2000. It was restructured from the Engineering Machinery Development Department of the Qishuyan Locomotive and Rolling Stock Technology Research Institute of the former Ministry of Railways. A wholly-owned subsidiary of the company, a key high-tech enterprise of the National Torch Plan, a backbone enterprise of Changzhou Rail Transit Industry Base, a member unit of Jiangsu Rail Transit Industry Technology Association, and a core unit of China's large road maintenance machinery research and development. "Jiangsu Rail Transit Road Maintenance Machinery Engineering Technology Research Center" is a high-tech innovation platform approved by Jiangsu Science and Technology Department and established by Changzhou Ruitai Construction Machinery Co., Ltd.

The Seppes electric industrial sectional door installed by Changzhou Ruitai Construction Machinery Co., Ltd. was completed in November and passed the acceptance of the audit department. Seppes provided industrial door project transformation for a number of CRRC subsidiaries, including: Changzhou CRRC Tiema, Changzhou Langrui Toyo, Changzhou Ruitai Construction Machinery, etc.