General Projects: Metal structure manufacturing; metal products sales; container manufacturing; container sales; metal structure sales; container leasing services; hardware retail; sanitary ceramic products sales; machinery and equipment sales; fire protection equipment sales; metal materials sales; thermal and acoustic insulation materials sales; building materials sales; architectural materials sales; goods import and export; furniture installation and repair services; leasing services (excluding lease services requiring a license); metal products manufacturing for safety and fire protection; thermal insulation material sales; house demolition services; metal door and window construction projects; architectural decoration, plumbing and heating pipe fittings, and other building metal products manufacturing; door and window sales; lightweight building materials manufacturing; landscape construction projects. (Except as otherwise required by laws and regulations, conducting business operations independently in accordance with the business license.) License Projects: Construction projects; specialized construction work; construction engineering design. (As otherwise required by laws and regulations, business operations shall be conducted in accordance with the administrative approval documents or licenses, and the specific business operations shall be subject to the approved documents or permits of the administrative approval departments.)