... speed control system of SIEMENS;7. Main control system: process control, speed control, tension control, auto-choosing set value, acid ... per yearAnd we also provide continuous pickling line, stainless steel pickling line, 12 hi/ 6 hi reversing cold rolling ... mill, skin pass mill, tension leveling line, bright annealing line, electrolytic tinning line, galvanized line and so on. For more information, ...