building materials, wood, Chemical products( No dangerous goods), Metal materials( Except for special control items), Mechanical and electrical products, agricultural and sideline products( Except for special control items), liquor, office supplies, textile, furniture, car( Except cars), motorcycle, Auto Parts, Motorcycle parts wholesale and retail; New product research and development、 Production and sales; Central air conditioning cleaning、 Building cleaning services, Import and export business of commodities and related technologies( However, this excludes goods and technologies that are restricted or prohibited from import and export by the state.)。 Property Management。