... shafts,couplins,guides,gear reducer etc. Screw Jack Lifting System configurations screw jacks, bevel gearboxes, flex linking shafts, ... synchronized, self locking 2. Multiple jack system, from pair jacks system to fourteen jacks system 3. Electric driven, manual operated are ... mills, Cold/Hot rolling mills, Spiral weld pipe mills, Saw pipe mills, ERW pipe mills, All tube mills, Industrial automation, ...