17 Plastic in the form of bars, blocks, pellets, rods, sheets and tubes for use in further manufacturing and general industrial use; Plastics in extruded form for use in further manufacturing; Plastic composite material in the form of profiles, boards, sheets, blocks, rods, powder, and pellets for use in manufacturing; Semi-worked synthetic plastic and synthetic resins as semi-finished products in form of pellets, rods, foils, foams, fibers, films and sheets; Building insulation; Insulating materials and tapes; Packing and insulating materials; Polymer electrolyte membranes for use in fuel cells and for use in electrolytic cells