Diamond Manufacturing is a fully owned subsidiary of Reliance Steel & Aluminum Co. (NYSE: RS), the biggest metals service center business in North America and a top supplier of varied metal solutions.

With the ability to custom engineer and perforate over 4,000 patterns on over 50 perforating presses on-site, Diamond produces sheet, coil, fabricated, and finished products with tolerances tighter than industry norms.

As North America's largest and most prominent metal perforator, Diamond Manufacturing can cater to the needs of both small job shops and major OEM buyers, demonstrating our adaptability in meeting their demands.