Group 1 - Jiangyin Yuefa Printing and Dyeing Machinery Sales Co., Ltd. has been established with a registered capital of 500,000 RMB [1] - The legal representative of the company is Yang Chenkai [1] - The business scope includes sales of textile special equipment, mechanical parts, environmental protection special equipment, and manufacturing of refining and chemical production special equipment [1] Group 2 - The company also engages in industrial design services, technical services, development, consulting, exchange, transfer, and promotion [1] - Additional services include installation of general machinery, repair of special equipment, and maintenance of electronic and mechanical equipment [1] - The company operates independently within the scope of its business license, excluding projects that require approval [1]