General items: production of Class I medical devices; manufacturing of general equipment (excluding manufacturing of special equipment); manufacturing of special equipment (excluding manufacturing of licensed professional equipment); mechanical equipment research and development; manufacturing of sporting goods and equipment; sales of Class I medical devices; sales of Class II medical devices; sales of needles and textiles; retail of clothing and apparel; sales of daily necessities; retail of stationery; wholesale of sporting goods and equipment; retail of sporting goods and equipment