Founded in 1945, Aero-Plastics was originally known as Western Model Works. It is one of the leading companies providing plastic and metal components for aerospace, defense, and commercial applications. The company provides computerized numerical control milling and turning, injection molding, thermoforming, annealing and engineering services. It has various CNC lathes and electronic discharge machining equipment and is certified to ISO-9001:2000 and AS9100B:2001. Aero-Plastics has a 21,000-square-foot manufacturing facility in Renton, Wash.