Manufacturing of technical glass products; manufacturing and processing of doors and windows; glass manufacturing; manufacturing of intelligent basic manufacturing equipment; manufacturing of new building materials (excluding hazardous chemicals); manufacturing of industrial automatic control system devices; sales of technical glass products; research and development of new material technology; sales of doors and windows; sales of thermal insulation and sound insulation materials; manufacturing of thermal insulation and sound insulation materials; construction Sales of materials; sales of industrial automatic control system devices; sales of intelligent basic manufacturing equipment; professional design services; sales of mechanical equipment; manufacturing of special equipment (excluding licensed professional equipment manufacturing); new material technology promotion services; import and export of goods; import and export of technology; import and export agency; inspection and appraisal of import and export commodities; conference and exhibition services