7 Machines and machine tools for treatment of materials and for manufacturing, namely, casting machines, die cutting and stamping machines, press dies for metal forming, metal working machines, plastics working machines, palletizers, case elevators, automatic pallet dispensing machines and automatic slip sheet dispensing machines, deep drawing machines and machines for forming materials by means of differential pressure, welding presses, power-operated rivet guns, jointers, machines for hemming metal, screwing machines, resistance-welding machines, projection welding machines, spot welding machines, electric arc welding machines, friction welding machines, gas welding machines, welding machines using the principle of an arc moved magnetically, laser beam welding machines, laser beam cutting machines, mobile platforms, namely, elevating or lifting work platforms for moving industrial, stacker cranes, automated storage and retrieval cranes and conveyors, sorting machines, mechanical and hydraulic lifts, automatic lifting installations for indoor transportation of goods, mobile robot units and portable robot units in the nature of mobile and portable industrial robots that carry other robots to achieve mobility and portability of the robots; robots, namely, industrial robots, industrial robots being for transport businesses and amusement parks, industrial service robots being, in particular for cleaning and monitoring tasks; welding installations, essentially consisting of the above-mentioned welding machines, namely, resistance-welding machines, projection welding machines, spot welding machines, electric arc welding machines, friction welding machines, gas welding machines, welding machines using the principle of an arc moved magnetically, laser beam welding machines, transporting machines, namely, conveyor belts, plate conveyors, roller conveyors, roller blocks, chain conveyors, sliding conveyors, oscillating conveyors, pneumatic and hydraulic conveyors and tensioning devices, being mechanically driven apparatus for tensioning work pieces, and also including industrial robots or industrial welding robots for execution of welding work; transporting machines and conveying machines, namely, conveyor belts, plate conveyors, roller conveyors, roller blocks, chain conveyors, sliding conveyors, oscillating conveyors, pneumatic and hydraulic conveyors, lifting installations for the transport of goods; structural parts and accessories for machines and machine tools for treatment of materials and for manufacturing, namely, bearings, bushings, gear drives, cam shafts, machine tool holders, welding presses, welding electrodes, holders for welding electrodes, welding torches, welding cylinders, electric motor-powered welding guns, motors and engines except for land vehicles, machine couplings except for land vehicles, mechanical turntables and revolving drums, mechanical filler wire feeding equipment, and hose kits, namely, fluid power component kit comprising hose and fittings for use in machinery, drive machines for industrial, drives for motors for industrial, transmission components for electric welding equipment, namely, welding torches, welding electrodes, electric wet grinders for welding electrodes