Aluminum alloy profiles, copper products, iron products, aluminum products, stainless steel products, solar water heater accessories, hardware accessories manufacturing, crystalline silicon solar cell assembly, aluminum alloy door and window production, auto parts, motorcycle parts sales, self-operated and agency import and export business of various commodities and technologies (except for commodities and technologies that are restricted by the state or prohibited from import and export), road general cargo transportation (except dangerous goods and explosives). General projects: manufacturing of photovoltaic equipment and components; sales of photovoltaic equipment and components