Technical services, technology development, technology consulting, technology exchanges, technology transfer, technology promotion; computer system services; intelligent control system integration; information system integration services; sales of electronic products; display device sales; computer software, hardware and auxiliary equipment wholesale; slide and projection equipment sales; lighting sales; audio equipment sales; security equipment sales; sporting goods and equipment wholesale; office supplies Sales; Office Equipment Consumables Sales; Hardware Wholesale; Distribution Switch Control Equipment Sales; Electrical Equipment Sales; Mechanical and Electrical Equipment Sales; General Merchandise Sales; Building and Decorative Materials Sales; Metal Structures Manufacturing; Metallic Materials Sales; Furniture Sales; Fire Fighting Equipment Sales; Wire and Cable Operations; Graphic Design and Production