Manufacturing of technical glass products; sales of technical glass products; manufacturing of fiberglass and products; sales of fiberglass and products; sales of metal materials; sales of building materials; sales of needle textiles and raw materials; wholesale of hardware products; sales of household appliances spare parts; sales of building decoration materials; sales of CNC machine tools; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; new material technology promotion services; sales of special chemical products (excluding hazardous chemicals). Licensed items: import and export of goods; import and export of technology.