Product Overview The NBM-350D/500D is a digital single-pulse MIG/MAG welding machine engineered for professional industrial use. Built on a full digital architecture with IGBT soft-switching inverter technology, it delivers a stable welding process, neat bead appearance, and reliable performance across demanding production environments. Models covered: NBM-350D / NBM-500D Key Features PWM wire-feed circuit with highly stable power supply for smooth wire feeding IGBT soft