Established in 1961, Advanced Precision Fabricators Inc. is a full range of custom-engineered applications firm in the United States. Based in Tulsa, Okla., it specliazes in manufacturing pressure vessels, tray towers, autoclaves and quick opening closures. The firm offers a range of services, such as welding in stick, MIG, TIG, flux core, sub arc single\ dual varieties, sealing surfaces and new grooves for gaskets. Its capabilities include design, engineering, fabrication, installation, as well as repairs and alterations.