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, 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.