Colorful extrusion
Wayne Stagner, president and chief executive officer of SteerAmerica Inc. of Uniontown, Ohio, explains how Steer's twin-screw extruder is making crayons to students from St. Mary's Elm Grove School of Elm Grove, Wis. Kylie Speirs, a senior at Ferris State University, led the tour, which was coordinated by the National Plastics Center's PlastiVan program.