3D printers; Gears for machines; Laser engraving machines; Machine parts, namely, bearings; Machine parts, namely, couplers and semi-couplers of synthetic material; Machine wheels; Parts for pneumatic blow guns, namely, inflator tips, inflator valves, valve adapters, nozzles, nipples, couplers, connectors and pivots; Power transmission belts for machines; Pulleys being parts of machines; Rail switch for an industrial conveyor assembly comprising straight and curved rails, upright bridge frame...