Plastics in extruded form for use in further manufacture; extruded plastics in the form of sheets for use in further manufacture; extruded plastics in the form of tubes for use in further manufacture; extruded plastics in the form of blocks for use in further manufacture; extruded plastics in the form of pellets for use in further manufacture; adhesive-coated plastic sheets for use in further manufacture; extruded plastics in the form of bars for use in further manufacture; fiber-reinforced p...