Moreover, the endless belt production mode of Oredi ESP line cancels the repeated belt threading operation of each stand, so the total length of strip steel can fully meet the requirements of shape tolerance. Endless production is also a decisive factor to ensure the uniformity and stability of strip structure, grain size, yield strength and tensile strength. Because the tension of strip steel is always maintained, even if the production ratio of strip steel with the thickness below 1.2 mm exceeds 50%, the steel stacking rate can be lower than 0. 1%.