General Projects: Non-ferrous metal rolling processing,Metal material manufacturing, Door and window manufacturing and processing, Non-ferrous metal alloy manufacturing, Non-ferrous metal alloy sales, Metal material sales, Door and window sales, Architectural decoration、 Manufacturing of plumbing pipe parts and other metal products for construction, General cargo warehousing services( Does not contain hazardous chemicals or other items that require licensing and approval), Import and export of goods, Technology import and export, Domestic trade agent( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)