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 Piping Systems segment consists of Domestic Piping Systems Group, Great Lakes Copper, Pexcor Manufacturing Company and Heatlink Group Inc., Die-Mold Tool Limited, European Operations, Trading Group, and Jungwoo Metal Ind. Co., LTD. The Domestic Piping Systems Group manufactures and distributes copper tube, fittings, line sets, and pipe nipples, and resells steel pipe, brass and plastic plumbing valves, malleable iron fittings and faucets, and plumbing specialties. The Industrial Metals segment consists of Brass Rod & Copper Bar Products, Impacts & Micro Gauge, and Brass Value-Added Products. The Climate segment consists of Refrigeration Products, Fabricated Tube Products, Westermeyer Industries, Inc., Turbotec Products, Inc., ATCO Rubber Products, Inc., Linesets, Inc., and Shoals Tubular, Inc.