Fastener manufacturing; hardware product manufacturing; metal structure manufacturing; metal structure sales; metal material sales; hardware product wholesale; construction engineering machinery sales; rubber product sales; plastic product sales; automotive parts wholesale; wire and cable operations; labor protection product sales; fire equipment sales; electronic component retail; road freight transport for general cargo vehicles with total mass of 4.5 tons and below (excluding network freight and dangerous goods); information technology consulting services; technical services, technical development, technical consulting, technical exchange, technology transfer, technology promotion; non-residential real estate leasing; resident daily life services.