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Introduction Arc welding remains one of the most widely used welding methods in Nigeria due to its simplicity, affordability, and versatility. From roadside technicians and small fabrication workshops to large construction and oil & gas projects, arc welding machines are essential tools across industries. However, one of the most common challenges buyers face is choosing between a 200A and 300A welding machine. Should you go for a 200A machine for light work, or invest in a 300A machine for …