Profile: Nitech Stainless Inc. is a manufacturer and supplier of pipes & tubes. We offer a wide range of pipes, tubes, fittings and flanges in various grades. We also provide stainless steel pipes, tubes, fittings and flanges. Weld Neck Flanges are manufactured in different sizes according to the customers requirements. Our Weld Neck Flanges are suitable for high temperature and extreme pressure applications. They are corrosion resistant and our Weld Neck Flanges are Dimensionally Precise.