Metal structure manufacturing; metal product sales; metal packaging container and material manufacturing; domestic waste treatment equipment manufacturing; domestic waste treatment equipment sales; environmental protection special equipment manufacturing; environmental protection special equipment sales; plastic product manufacturing; plastic product sales; plastic packaging box and container manufacturing; metal daily-use article manufacturing; metal product repair; container manufacturing; sales agency; urban greening management; landscaping engineering construction; hand cart and animal-drawn vehicle manufacturing; hand cart and animal-drawn vehicle sales; environmental sanitation public facility installation services; urban and rural appearance management; municipal facility management; environmental sanitation management (excluding environmental quality monitoring, pollution source inspection, and disposal of urban domestic waste, construction waste, and kitchen waste); loading and unloading; electric vehicle charging infrastructure operation; parking lot services; leasing services (excluding licensed leasing services); non-residential real estate leasing.