The general business items are: design, development and sales of automated electromechanical equipment, intelligent packaging machinery and equipment, and assembly line equipment; sales of mechanical accessories, packaging materials and door-to-door maintenance of machinery; domestic trade; import and export of goods and technology (the above does not include items prohibited by laws, administrative regulations, decisions of the State Council and requiring pre-approval), and the licensed business items are: design and production of automated electromechanical equipment, intelligent packaging machinery and equipment, assembly line equipment; general freight (excluding transportation of dangerous goods, operating with a valid general transportation operating license).