What's the difference between Chang Chai and Changzhou?

Changchai Co., Ltd. is the first listed company in the national agricultural machinery industry and Changzhou, and it is the name of an enterprise. Changzhou refers to the name of a place and a city. Changfa Group is a large-scale diversified industrial group integrating agricultural equipment, refrigeration equipment and real estate. Changfa Building, headquartered in Wujin District, Changzhou, is also a company. Therefore, Chang Chai and Changfa are both enterprises located in Changzhou City, Jiangsu Province.