General project: Manufacturing of new energy prime mover equipment; Manufacturing of specialized equipment for food, alcohol, beverage, and tea production; Manufacturing of specialized equipment for agricultural and sideline food processing; Manufacturing of packaging specialized equipment; Manufacturing of metal packaging containers and materials; Sales of metal packaging containers and materials; Manufacturing of specialized equipment for environmental protection; Sales of mechanical equipment; Research and development of mechanical equipment; Processing of mechanical parts and components; Sales of mechanical parts and components (except for projects that require approval in accordance with the law, business activities shall be carried out independently based on the business license in accordance with the law)