7 Machines and apparatus for processing and printing 3D components of various metals and metal alloys, selective laser melting machines, selective laser sintering machines for chemical processing, metal fusion deposition machines, 3d laser printers, laser metal sintering machines for chemical processing, direct laser deposition welding machines, wire additive manufacturing machines, wire laser fusion welding machines, wire arc additive manufacturing machines, numerically controlled machines used for machining parts; machines and apparatus for processing of powder into metal metal alloy components, power feeder systems, and vacuum cleaners