Staff at the Cold Rolling Sheet plant of Shandong Zhongsheng Materials Co., Ltd. are checking the shape quality of zinc, aluminum and magnesium products after optimizing the production model (as shown in the picture). The factory takes the improvement of key economic and technical indicators as the breakthrough point, and carries out the "acid rolling scale breaking intelligent model", "intelligent winding at the entrance of the rewinding production line", "intelligent optimization of the precision and control sequence of the three-galvanized export coiling equipment" and other topics to improve the intelligent manufacturing level of the production line and improve the quality and stability of products. The comprehensive qualified rate of the factory's products reached 99.65%.