Among the various products that are produced in Section Mills (H-beam, Angle, Channel, Flat bar, Round Bar, Rail), this system specifically focuses on measuring the data of hot & cold . It measures the width, height of the hot products, and the thickness of Web & Flange. This data can be used as a data for the control of the roll, and by correcting the data of cold, the data of the actual product after processing can be confirmed.