Extruded plastics for use in production; extruded plastics in the form of bars, blocks, pellets, rods, sheets, and tubes for use in manufacturing; semi-processed polyolefin based plastics, namely, polystyrene; polystyrene panels for insulating purposes; extruded polystyrene pellets; extruded polystyrene pellets for packing; expanded polystyrene (EPS) insulation