Fire Protection Equipment Sales: New Material Technology Research and Development; High-performance Fiber and Composite Materials Manufacturing; New Building Materials Manufacturing (excluding hazardous chemicals); Building Materials Sales; Metal Processing Machinery Manufacturing; General Equipment Manufacturing (excluding special equipment manufacturing): Sales of Mechanical Parts and Components; Refrigeration and Air Conditioning Equipment Manufacturing; Sales of Refrigeration and Air Conditioning Equipment; Technical Services, Technical Development, Technical Consultation, Technical Exchange, Technology Transfer, and Technology Promotion: Fan and Blower Manufacturing; Sales of Fans and Blowers; General Parts Manufacturing: Electric Motor Manufacturing; Photovoltaic Equipment and Components Manufacturing; Sales of Instruments and Meters; Sales of Photovoltaic Equipment and Components; Electrical Equipment Sales; Metal Products Sales: Wire and Cable Operation, Hardware Retail, Electronic Components Retail: Valve and Plug Sales; Insulation Material Sales; Corrosion Resistance Material Sales; Security Equipment Sales: Special Equipment Sales; Overseas Engineering Contracting; Sales of High-performance Fiber and Composite Materials.