17 Recycled plastic materials, namely, recycled plastics in extruded form for use in manufacture of railway sleepers, railroad ties, switch sets, turnouts, construction mats, temporary roads, temporary vehicle tracks and temporary pedestrian footpaths; recycled plastic materials, namely, recycled plastics in extruded form for use in the manufacture of bridge construction and support materials; recycled plastic products, namely, recycled plastics in extruded form for use in the manufacture and production of sea defenses; recycled plastic composite materials, namely, recycled plastics in the form of profiles, boards, beams, bars, blocks, pellets, rods, sheets, tubes for use in the manufacture of railway sleepers, railroad ties, switch sets, turnouts, construction mats, temporary roads, temporary vehicle tracks and temporary pedestrian footpaths; recycled plastic composite materials, namely, recycled plastics in the form of profiles, boards, beams, bars, blocks, pellets, rods, sheets, tubes for use in the manufacture of bridge construction and support materials; recycled plastic composites products, namely, recycled plastics in the form of profiles, boards, beams, bars, blocks, pellets, rods, sheets, tubes for use in the manufacture and production of sea defenses; plastic composite products, namely, plastic composite material in the form of profiles, boards, beams, sheets, blocks, rods and pellets for use in the manufacture and production of sea defenses