Machinery parts and components processing; machinery parts and components sales; automotive parts research and development; automotive parts and accessories manufacturing; wholesale of automotive parts and accessories; retail of automotive parts and accessories; mold manufacturing; mold sales; hardware product manufacturing; hardware product retail; hardware product wholesale; metal material sales; plastic product sales; rubber product sales; daily-use wood product sales; teaching special instrument manufacturing; teaching special instrument sales; instrument and meter manufacturing; instrument and meter sales; power facility equipment manufacturing; power facility equipment sales; mechanical equipment research and development; mechanical equipment sales; petroleum drilling and production special equipment manufacturing; petroleum drilling and production special equipment sales; special equipment manufacturing (excluding licensed professional equipment manufacturing); radar and supporting equipment manufacturing; industrial automatic control system device manufacturing; industrial automatic control system device sales; integrated circuit design; integrated circuit manufacturing; integrated circuit sales; software development; professional design services; industrial design services; goods import and export; technology import and export; electrical equipment repair; general equipment repair; electronic and mechanical equipment maintenance (excluding special equipment); non-residential real estate leasing; mechanical equipment leasing; sales of Class I medical devices; sales of Class II medical devices. Licensed items: civil aircraft parts design and production; road motor vehicle production.