Licensed Projects: Import and export of goods, Technology import and export( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business items are subject to the approval results.) General Projects: Metal structure manufacturing, Metal structure sales, Lightweight building material manufacturing, Manufacturing of new building materials( No hazardous chemicals), Man-made board manufacturing, Artificial board sales, Mechanical parts、 Parts processing, Mechanical parts、 Parts Sales, Container manufacturing, Container sales, Container leasing services, Container repair, Special machinery manufacturing for building materials production,House demolition services( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)