Mueller Industries, Inc. is a manufacturer of copper, brass, aluminum and plastic products. The Company operates through three segments: Piping Systems, Industrial Metals and Climate. The Company's products include copper tube and fittings; line sets; brass and copper alloy rod, bar, and shapes; aluminum and brass forgings; aluminum impact extrusions; plastic fittings and valves; refrigeration valves and fittings; fabricated tubular products, and steel nipples. The Company also resells imported brass and plastic plumbing valves, malleable iron fittings, faucets, and plumbing specialty products. The Company's operations are located throughout the United States and in Canada, Mexico, Great Britain, South Korea, and China. The Company markets its products to the heating, ventilation, and air-conditioning (HVAC), plumbing, refrigeration, hardware, and other industries.