17 Insulating refractory fibers, namely, synthetic refractory material fibers in any form including bulk fibers, mats, blankets, boards, modules, felts, roving yarn, cloth, tape, rope, braid, cord, wicking, paper, molded articles such as blocks, boards, tubes, laminates, and vacuum cast shapes, and components thereof such as coatings, cements, tamping mixes, and ramming mixes for use as a high temperature resistant material for thermal, acoustical, mechanical, and electrical insulation, for gas filtration, for use as a component of high temperature resistant seals, gaskets and packings, for use as catalyst supports, for use as insulation that provides heat and flame protection, for use in manufacturing of friction materials such as brake and clutch linings, and for use in molten metals transfer; insulating refractory fibers, namely, synthetic vitreous fiber in the form of bulk fibers, blankets, and modules for refractory linings, thermal insulation, insulation for heat and flame protection, and metals transfer; Insulation materials, namely, thermal and acoustical insulation padding consisting of fibers, metallic and polymetric material for automotive, transportation and appliance use, heat and acoustical shields and acoustical insulation barriers; insulating refractory fibers, namely, microporous silica fibers for use in insulation in electrical, acoustical, thermal, and mechanical applications; activated fibers formed into various sized three-dimensional shapes for use as filtering materials in catalytic processes in industrial operations; appliance insulation; specialty insulation and composite papers for cryogenics in gas transportation; paper composed of synthetic fibers for insulating and high heat resistance purposes; recycled polyamide paper; paper composed of recycled synthetic fibers for insulating and high heat resistance purposes; thermal insulation fibers for use in the automotive industry, namely, high alumina polycrystalline fibers for use in insulating catalytic converters