Wire and cable manufacturing, construction engineering construction general projects: railway rolling stock parts manufacturing, lubricating oil processing and manufacturing (excluding hazardous chemicals), petroleum product manufacturing (excluding hazardous chemicals), specialty chemical product manufacturing (excluding hazardous chemicals), daily chemical product manufacturing, lubricating oil sales, construction steel bar product sales, instrument manufacturing, instrument sales, electronic special equipment manufacturing, computer software and hardware and peripheral equipment manufacturing, hardware product manufacturing, hardware product research and development, hardware product retail, furniture manufacturing, office supplies sales, office equipment consumables sales, mechanical equipment sales, wire and cable operations, lighting fixture manufacturing, security equipment manufacturing, security equipment sales, auto parts wholesale, household appliance sales, computer software and hardware and auxiliary equipment wholesale, mechanical and electrical equipment manufacturing, engineering management services, enterprise management consulting, corporate image planning, social economic consulting services, information technology consulting services.