Miller Industrial Manufacturing is certified and authorized by the American Society of Mechanical Engineers (A.S.M.E.) to fabricate unfired (U) pressure vessels, and certified by the National Board of Boiler and Pressure Vessel Inspectors to perform repairs (R) on pressure vessels. We design, fabricate, test, document, and stamp pressure vessels to ASME, Section VIII, Division I specifications. Our years of experience as an ASME code fabricator allow us to utilize a wide variety of materials, including stainless steel, Duplex Stainless Steel, and carbon steel.