a semi - continuous &# 34 ; push - pull &# 34 ; pickle line for removing oxides from hot - rolled steel strip . in addition to other value added features , a treatment portion of the pickle line includes : a two - high temper mill operable to break scale on the strip as well as elongate , shape correct and controllably reduce the gauge of the strip ; a pickling zone including at least one v - shaped , shallow - path pickling tank within which a plurality of sparging ports dispense substantially laminar flows of acid solution toward the bottom surface of the strip as it passes through the pickling tank ; and a displaceable inspection table desirably cooperating with lights and mirrors to permit simultaneous inspection of the top and bottom surfaces of the steel after pickling .