Changzhou Chemical School of Jiangsu Province, Electronic Campus of Changzhou Technician College of Jiangsu Province, Changzhou Tourism Business School. From the introduction of Jiangsu Changzhou Chemical School, Jiangsu Changzhou Technician College Electronic Campus, Changzhou Tourism and Trade College and other vocational and technical schools, we can know that these three schools all have the training business of injection molding machines. Changzhou, also called Longcheng for short, is a prefecture-level city under the jurisdiction of Jiangsu Province and a city in the central area of the Yangtze River Delta.