Software development; Motorcycle parts wholesale; Motorcycle parts retail; Auto parts wholesale; Auto parts retail; Machinery parts wholesale; Machinery parts retail; Bicycle wholesale; Bicycle retail; Electronic products wholesale; Retail of electronic products; Hardware products wholesale; Hardware retail; Metal products wholesale; Metal decorative materials retail; Electronic components wholesale; Retail of electronic components; Instrument wholesale; Stationery wholesale; Stationery retail; Sports goods and equipment wholesale; Retail of sporting goods and equipment; Software technology promotion service; Scientific and technological information consulting services.