Original oil and gas trade magazine vintage ad for HAGAN CHEMICALS & CONTROLS, INC. was located at Hagen Center, Pittsburgh, PA. Hagan X-2. Triple Duty Corrosion Inhibitor Corrosion Controller, Biocide, Cleaner. Your only complete source of chemical feeding equipment, water treatment chemicals, field laboratories, engineering service. This unique 1962 old petroleum industry magazine advertisement would display beautifully matted and framed.