Original 1947 Oil and Gas trade vintage catalog for the J G LONG, INC. Main office and plant was located at 1002 Bayland Avenue, Houston, TX.

Manufacturers of Oilfield Metal Ring Gasket Equipment.

Products include Double O Safety Seal Rings.  Application of the Safety Seal Ring on the outside of the metal ring affords additional protection for the metal ring against outside corrosion and also prevents the development of vacuum pressures. Inside application of the Safety Seal Ring to protect the metal ring gasket and serve as an auxiliary seal.  

Has product image, illustrations, description, application and specifications provide product details.

Unbound from a large rare post-wartime 1946-1947 Catalog of Oil Field Equipment, this unique old one-page technical brochure would display beautifully matted and framed. Nice graphics. A fabulous addition to your retro petroleum industry library.