唐钢轧钢系统在“七五”、“八五”期间，按照《唐钢改扩建总体规划》的部署，进行了初步的工艺结构和产品结构调整。但由于计划经济时期国家将唐钢确定为建筑和矿用钢材的专业生产厂，产品单一的格局未能改变，轧钢设备仍以50—70年代水平的横列式和复二重轧机为主，多火成材 During the “Seventh Five-Year Plan” and “Eighth Five-Year Plan” period, Tangshan Iron and Steel Rolling System carried out preliminary technological structure and product structure adjustment according to the plan of “Tangshan Iron and Steel Overall Plan for Reconstruction and Extension”. However, due to the state economy in the planned economy, Tangshan Steel was identified as a specialized manufacturer of construction and mining steel products, the single pattern of the product remained unchanged. Rolling equipment was still dominated by horizontal and double rolling mills in the 50-70 years Fire into pieces