Norris Cylinder Company produces high pressure, seamless cylinders, widely used for shipping, storing, and dispensing industrial gases. Our high pressure cylinders are fabricated from chromium-molybdenum steel, and are produced in strict compliance with all applicable DOT/TC specifications. Each cylinder is manufactured by the hot billet pierce method which produces a seamless cylinder with the bottom integral with the sides. Norris seamless high pressure cylinders are produced in our state-of-the-art Longview, Texas facility, and are available in sizes ranging from 85 to 550 cubic feet of gas capacity. At Norris. We understand our customers’ need for well-constructed safe cylinders, which is why we emphasize strict quality-control procedures throughout the manufacturing process.