17 Extruded plastics for use in manufacturing; Plastic in bars, blocks, pellets, rods, sheets, tubes or extruded form for general industrial or manufacturing use; Packing materials of plastic for shipping containers; Plastic foam; Plastics in extruded form for use in further manufacturing; Semi-processed plastics; Biodegradable plastics in bars, blocks, pellets, rods, sheets, tubes or extruded form for general industrial or manufacturing use