A-Ox Welding Supply Co, located is Sioux Falls, Mitchell, Huron, and Watertown SD., Fargo, ND and Sioux City, Iowa, has served the areas for over 60 years providing welding supplies and industrial and medical gases. Whatever your welding and cutting-related needs, we have the products for you. Our products include- Industry-leading stick welders, TIG welders, MIG welders, engine-driven welders, wire feeders, welding consumables, fume extraction (environmental) systems, welding automation (robotic) systems, industrial Gases, Liquefied Gases , medical gases, oxygen, propylene. Call us today. Sioux Falls SD, Mitchell SD, Yankton SD, Watertown SD, Huron SD, Sioux City, Iowa & Fargo North Dakota.