Mueller Industries, Inc. manufactures and sells copper, brass, aluminum, and plastic products in the United States, the United Kingdom, Canada, South Korea, the Middle East, China, and Mexico. The company's Piping Systems segment manufactures copper tubes and fittings, and line sets for water distribution system, heating system, air-conditioning, and refrigeration applications, as well as drainage, waste, and vent systems. It also manufactures steel pipe nipples; and resells imported brass and plastic plumbing valves, malleable iron fittings, faucets, and plumbing specialty products. This segment sells its products primarily to plumbing, refrigeration, and air-conditioning wholesalers; and hardware wholesalers and co-ops, building product retailers, and air-conditioning original equipment manufacturers (OEMs). The company's Industrial Metals segment manufactures and sells brass, bronze, and copper alloy rods; cold-formed aluminum and copper products for automotive, military ordnance, a