Features For the better elongation control and flatness, the system features the high accuracy of hydraulic system and the strout mechanical structures. With the proven performance of our Skin Pass Mill Line at Kwangyang ......Features For the better elongation control and flatness, the system features the high accuracy of hydraulic system and the strout mechanical structures. With the proven performance of our Skin Pass Mill Line at Kwangyang Works of POSCO, the development of the system design could reach at to the high level with the good reliability to customers. Good reliability Accurate control system Economic design