Metal product research and development; household item manufacturing; furniture manufacturing; smart home consumer equipment manufacturing; door and window manufacturing and processing; metal door and window construction; sanitary ware manufacturing; building decoration, water supply and drainage pipe fittings, and other building metal product manufacturing; home textile finished product manufacturing; plastic product manufacturing; rubber product manufacturing; staircase manufacturing; building metal accessory manufacturing; technical services, technical development, technical consulting, technical exchange, technology transfer, technical promotion; new material technology promotion services; software development; landscaping construction; road cargo transport for general cargo vehicles with total mass of 4.5 tons or less (excluding online freight and dangerous goods); professional design services; door and window sales; household item sales; furniture sales; sanitary ware sales; plastic product sales; rubber product sales; industrial textile finished product sales; textile and raw material sales; textile product sales; smart home consumer equipment sales; building decoration material sales; packaging material and product sales; building material sales; awning sales; domestic trade agency; goods import and export; technology import and export; import and export agency; trade brokerage. Permitted items: residential interior decoration; road cargo transport (excluding dangerous goods); construction engineering design; construction engineering construction.