Metal structure manufacturing; Metal packaging container manufacturing; Elevator, escalator, and lift manufacturing; Other material handling equipment manufacturing; Continuous conveying equipment manufacturing; Container manufacturing; Metal surface treatment and heat treatment processing; Other unlisted metal product manufacturing (excluding items requiring prior approval); Production special vehicle manufacturing; Machinery and equipment warehousing services; Other special equipment manufacturing (excluding items requiring approval); Photovoltaic equipment and component manufacturing; Metal product repair; General equipment repair; Steel structure engineering construction; Solar photovoltaic system construction; Other machinery and equipment and electronic product wholesale; Hardware product wholesale; Computer, software and auxiliary equipment wholesale; Software development; Information system integration services; Industrial automatic control system device manufacturing; Other unlisted machinery and equipment leasing (excluding items requiring approval); Own real estate business activities; Import and export of various commodities and technologies (without attaching separate import and export commodity catalog), except for commodities and technologies restricted or prohibited by the state.