7 Machines, namely, aerators, casting machines, machine tools for crushing rock and compacting powder materials and industrial robots for crushing rock and compacting powder materials; machine parts, namely, mold for use in the plastering and metal cutting; injection molding machines; connecting rods for machines, motors and engines other than for land vehicles; machine couplings other than for land vehicles; electric welding machines, electric welding apparatus, namely, welding torches, gas-operated welding machines, gas-operated welding apparatus, namely, gas welding guns; bearings as parts of machines; hydraulic engines and motors other than for land vehicles; control mechanisms for machines, engines or motors, namely, hydraulic controls for machines, motors and engines; pneumatic or hydraulic machines and instruments, namely, pneumatic pumps, hydraulic jacks; machines tools, namely, mechanical, pneumatic and hydraulic clamps for clamping of work pieces and tools, as parts of machines; elements for positioning of work pieces and tools, as parts of machines, namely, ball transfer units for use in a positioning system; machine tools, namely, mounting units, in particular mounting pallets, angle plates and mounting cubes, for fastening of clamping elements, positioning elements or shoring elements; structural components of machine stands for work pieces and tools, as parts of machines; hydraulic pumps, hydraulic sets, composed primarily of an electric drive motor, of a hydraulic pump, of an oil tank made of metal or of plastic material, electro-hydraulic control devices in the nature of pneumatic controls for machines, motors and engines; hydraulic pressure transformers, namely, pressure reducers as parts of machines, hand pumps for hydraulic materials, namely, centrifugal pumps, hydraulic machines, namely, hydraulic pressure accumulators; pneumatic valves, hydraulic valves, pressure switches as parts of machines