Roll forming machines and cutting machines for productions lines; machines for unrolling strips and for destacking blanks; machines for cutting into transverse and longitudinal parts; cropping shearing machines; machines for welding strip ends; trimming and levelling machines; mechanical apparatus for driving pliers and rolls; motor-driven conveying system, namely, transport, conveyor, driving and feeding slides, roller conveyors, adjustable roller conveyors, wheel conveyors, conveyor belts, cross conveyors and angle transfer apparatus as well as mechanical apparatus for storing strips and reeling apparatus; mechanical turning apparatus, cutting, punching, notching, perforating, die-stamping, deep-drawing, flanging, press-in machines for stationary or travelling processing, swivel bending machines and folding presses, foaming machines for in-situ foaming and inserting of plastic materials, extrusion molding machines, resistance welding machines, gas-shielded welding machines, high frequency welding machines, laser welding machines, travelling and stationary sawing machines, shearing machines and cutting machines; travelling flanging machines for metal working; marking and sorting machines; machines for mordanting and for surface finishing, grinding machines for metalworking, polishing and brushing machines; mechanical suction apparatus and separators; machines for unloading and stacking metal-sheets; mechanical apparatus for handling and for dressing and straightening, production lines in particular for manufacturing metal sheets and pipes substantially consisting of single, several or all of the aforementioned goods; all aforementioned goods for processing metal and/or plastic materials