Chongqing Chuanyi Automation Co., Ltd. researches, manufactures, and markets industrial auto-control systems and devices, and engineering integration services in China. The company offers industrial automation instruments, such as temperature instruments, pressure/differential transmitters, flow meters, level meters, electric actuators, control and special valves, analytical instruments, automatic control systems, gas analyzers and systems, liquid analyzers and systems, and laboratory analyzers. It also provides transportation and environmental products, including rail transportations and systems, including PSD/APG system and train electrical traction system; distributed sewage treatment devices; and desulfurization and denitration products. In addition, the company offers materials and components comprising metallic functional materials and sapphire and ruby materials; industrial automation EPC, industrial automation operation and maintenance, valve maintenance and remanufacture, environmental EPC, system integration and general contracting services, and rail transit EPC services. It serves power, metallurgy, chemical, nuclear, light, building material, rail transit, municipal engineering, and environmental industries. The company was formerly known as Chongqing Chuanyi Plant Co., Ltd. and changed its name to Chongqing Chuanyi Automation Co., Ltd. Chongqing Chuanyi Automation Co., Ltd. was incorporated in 1999 and is based in Chongqing, China.