Steel in the form of metal powder; compacted metal powder products and wrought metal products, namely, compacted metal powder and wrought metal strips, sheets, plates, wires, rods, bars, billets, pipes and tubes for further manufacture

Filter material consisting of a gas permeable, textile carrier covered with adsorbent particles for noxious or odorous gases, for use in environmental control apparatus

filter consisting of gas permeable material, namely a textile base material coated with an absorbent for noxious and odorous gases, for use in environmental control apparatus