3D printers; Alternating current servo motors; Bearing inserts for machines; Bearings for transmission shafts, being parts of machines; Boring machines for metalworking; Cutting machines; Cutting machines for metalworking; Engraving machines; Grinding machines for metalworking; Lapping machines for metalworking; Metalworking machines, namely, machining centers; Milling-drilling machines; Roller bearings for machines; Servomotors; Shaft couplings for machines; Stone-working machines; Typecasti...