Recently, the first heat-treated plate of the 3800mm wide thick plate heat treatment line of the Guangxi Iron and Steel hot rolling general plant was successfully produced. This product can be used for the production of high-end varieties such as ship and marine steel, wind power steel, bridge and building structure steel, engineering machinery steel, pipeline steel, boiler and pressure vessel steel, mold steel, weather-resistant structural steel, etc., which will add impetus to the group's optimization of product structure and realization of high-quality transformation and development.