Unifit Metalloys specializes in manufacturing and exporting high-quality SA-516 Grade 60/70 Spectacle (Spacer) Flanges, engineered for pressure piping systems, boiler applications, and isolation tasks. Crafted per ASME B16.48 and ASTM A516 standards, our spectacle flanges are available in sizes from ½″ to 48″ with multiple face types (RF, FF, RTJ) and pressure classes. Ideal for servi...