Prefabricated member according to the installation order and process requirements and assembly of prefabricated steel members on the steel platform, to ensure the quality of welding production. Steel. Steel flange plate splice splice splice joints and seams web spacing should be greater than 200 mm. Flange plate splice length of not less than 2 times the strip width; web splice width of not less than 300 mm, a length of not less than 600 mm. Development of steel industry downstream industry has a large traction and driving action, changes in demand they will determine the future development of the industry. Steel for its high strength, light weight, good seismic performance, high degree of industrialization, short construction period, plasticity, environmental protection and other comprehensive advantages. Fangchenggang steel, Guangxi Yinhe (certified), steel supplied by Guangxi Yinhe metal structure Engineering Limited. Guangxi Yinhe metal structure Engineering Company Limited (www.gxmmr.cn) Guangxi Nanning, the activities of the leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Guangxi Yinhe leadership with the staff warmly welcome all inquiries negotiations to create the Guangxi Yinhe better future.