Special-purpose equipment manufacturing (excluding licensed professional equipment manufacturing); Environmental protection special-purpose equipment manufacturing; Textile special-purpose equipment manufacturing; Building materials production special-purpose machinery manufacturing; Photovoltaic equipment and components manufacturing; Automotive parts retail; Automotive parts and accessories manufacturing; Automotive parts wholesale; Urban rail transit equipment manufacturing; Rail transit special-purpose equipment, key systems and components sales; Rail transit green composite materials sales; High-performance fibers and composite materials manufacturing; High-performance fibers and composite materials sales; Railway transport infrastructure equipment sales; High-speed rail equipment and accessories manufacturing; High-speed rail equipment and accessories sales; Railway locomotive and rolling stock parts manufacturing; Railway locomotive and rolling stock parts sales; Technical services, technical development, technical consulting, technical exchange, technology transfer, technology promotion; Import and export of goods. Licensed items: Civil aircraft (engines, propellers) production; Special equipment manufacturing.