... shafts,couplins,guides,gear reducer etc. Screw Jack Lifting System configurations screw jacks, bevel gearboxes, flex linking shafts, ... , self locking 2. Multiple jack system, from pair jacks system to fourteen jacks system 3. Electric driven, manual operated ... Glass charging machines, Food processing machines, Textiles machines, Steel manufacturing mills, Cold/Hot rolling mills, Spiral weld pipe mills ...