Product Description - Flange repair. - Material: Stainless steel. From the Manufacturer Sioux Chief creates and manufactures some of the most diverse and innovative plumbing products in the country. We focus on product innovation initiated by field research and interviews with plumbers, engineers, code officials, and distributors. One of the reasons Sioux Chief is able to turn an idea into a product so quickly is because we design and build our own Machines, tools and dies, and equipment to ensure that exact product tolerances are achieved. Process innovation also controls manufacturing costs, providing constant, reliable value to the customer, year after year. Sioux Chief is proud to be a true American innovator, one that combines the desire to innovate with the capability to make it happen.