Founded in 1969, Seljan Company deals in fabrication and plastic products and services. The company offers various services, including in-house tooling, welding, metal stamping, finishing and product design. It provides a variety of plastic products that include marine seats, storage tanks, sink bases, dispensers, shipping bins and vacuum tanks. The company offers hardware products that include sliding door handle sets, stainless steel hinges, strike plates, flush bolts and locking handles. In addition, it offers drill jigs, pressure vessels, foaming fixtures and specialty machines. The company provides heat treating and computerized numeral-control machining services. It operates more than five punch presses that provide various secondary operations. Seljan Company is located in Lakemills, Wis.