Mueller Industries, Inc. is a manufacturer of copper, brass, and aluminum products. The Company's products include copper tubes and fittings; line sets; steel nipples; brass rods, bars and shapes; aluminum and brass forgings; aluminum impact extrusions; compressed gas valves; refrigeration valves and fittings; pressure vessels; coaxial heat exchangers; insulated flexible duct systems, and wire and cable solutions. It also resells brass and plastic plumbing valves, faucets, and plumbing specialty products. Its Piping Systems segment is composed of Domestic Piping Systems Group, Great Lakes Copper, European Operations, Trading Group, Jungwoo Metal Ind. Co., LTD and Mueller Middle East WLL. Its Industrial Metals segment is composed of Brass Rod, Impacts & Micro Gauge, Brass Value-Added Products, Precision Tube, and Nehring Electrical Works Company. Its Climate segment is composed of Refrigeration Products, Westermeyer Industries, Inc., Turbotec Products, Inc., Flex Duct and Linesets, Inc.