NS MAQUINAS ML-100 Round Tube Finishing Machine NS Máquinas is a specialized manufacturer of machines for the metal finishing and polishing industry located in Portugal. Through the years NS Máquinas has been NS Máquinas is a specialized manufacturer of machines for the metal finishing and polishing industry located in Portugal. Through the years NS Máquinas has been bringing unique features and designs both to tube and sheet metal fabricators. This has been made possible by continual investment in research and development and to a constant pursuit of optimal and flexible solutions. Today NS is capable of creating and offering machines which combine quality and adequacy for diverse production requirements bringing unique features and designs both to tube and sheet metal fabricators. This has been made possible by continual investment in research and development and to a constant pursuit of optimal and flexible solutions. Today NS is capable of creating and offering machines which combine quality and adequacy for diverse production requirements.