In the early 1980s, in cooperation with electromechanical manufacturing and construction companies, a number of projects using new technologies were designed and built, including: blast furnaces of more than 2000 cubic meters, large and medium oxygen converters and electric arc furnace steelmaking workshops , Various vacuum melting, refining outside the furnace and continuous casting facilities of square and slab. In addition, it also carried out the design of the technical transformation of the existing steel plant, and carried out the design business of energy saving and development projects, building materials, communications, as well as new civil buildings, special economic zones, etc.; in engineering technology with China Guangan Consulting Company and Beijing Environmental Assessment United In close cooperation, extensive domestic and foreign engineering consulting and environmental assessment services have been carried out.