Mueller Industries is a manufacturer of copper, brass, aluminum, and plastic products. The range of products Co. manufactures are: copper tube and fittings; line sets; PEX plastic tube and fittings; steel nipples; brass rod, bar, and shapes; aluminum and brass forgings; aluminum impact extrusions; compressed gas valves; refrigeration valves and fittings; pressure vessels; coaxial heat exchangers; and insulated flexible duct systems. Co. also resells brass and plastic plumbing valves, plastic fittings, malleable iron fittings, faucets, and plumbing specialty products. Co.'s reportable segments are: Piping Systems, Industrial Metals, and Climate.