Mueller Industries

Only top brass make it in Mueller Industries' business. That and copper, aluminum, and plastic -- materials used to make Mueller tubes and fittings, bars and rods, forgings, extrusions, pipes, and valves. Mueller also resells a myriad of products, from brass and plastic plumbing valves to faucets and malleable iron fittings. Its work is divided between two segments: Plumbing & Refrigeration (a Standard Products Division, and European and Mexican Operations) and OEM (Industrial and Engineered Products Divisions, and Chinese joint venture Mueller-Xingrong). Mueller sells to HVAC, plumbing, and refrigeration wholesalers and OEMs, housing construction and RV distributors, and building material retailers worldwide.