17 Semi-manufactured plastic products, namely, semi-processed plastics; weatherstripping compositions, water-tight and insulating material, namely, weatherstripping sealants in the nature of caulk; non-metallic flexible tubes of rubber, plastic; synthetic resins and plastics as semimanufactures; synthetic resins and plastics as semimanufactured products in the form of granules, fibres, threads, tapes, strips, films, strips, foil, leafs, laminates, blocks, bars, rails, strings, tubes, pipes, membranes, sponges, profiles, sheets; plastic fibres as strengthening materials for use in the manufacturing of sports products, surf boards, hockey sticks, helmets, skis and diving suits; stuffing and cushioning packing materials of rubber and plastic; compounds composed of synthetic resins as semi-manufactured goods; semi-manufactured composites composed of fibre strengthened synthetic rubber or fibre strengthened synthetic resins; thermoplastic elastomer resin granulates and rubber granulates for use in further manufacture; soldering threads of plastic, not for textile use, for the manufacture of artificial turf and artificial turf mats; ceramic materials in the form of foil, tapes and sheets, namely, electrical ceramic insulators; semi-manufactured thermoplastic elastomers, namely, elastomer resins in pellet form for use in further manufacture; thermoplastic compositions and mixtures composed primarily of plastics and synthetic rubbers and containing other materials as semi-manufactures; synthetic rubber in the form of raw materials and semimanufactured; semimanufactured synthetic resins in the form of polymerization products also containing monomers, namely, semi-processed plastics; filling materials composed of synthetic resins, namely, expansion joint fillers; plastic soldering fibres, yarn and thread, not for textile use, namely, for use in the manufacture of tire cord, and for use in the manufacture of other goods, and chemical fiber thread and yarn not for textile use; sheets and panels out of synthetic fibres included in this class, namely, sheets and panels of synthetic plastic for general industrial use; microporous plastic foil, not for packaging purposes, namely, microporous plastic as semi-finished products in the form of foils not for packaging purposes; semimanufactured microporous plastic tapes for use in construction and further manufacturing, strips, plastics in the form of sheets, foil and plastic soldering threads; construction materials, namely, semi-manufactured membranes of plastic, namely, weatherizing membranes and vapor barriers for the production of microporous division walls and filters and for use in textile composites; semi-worked waterproof, vapour passing plastic foil, not for packaging; semi-processed plastic foils in the nature of filtering and division materials for industrial use and for use in further manufacturing; Plastic composite material in the form of profiles, boards, sheets, blocks, rods, powder, and pellets for use in manufacturing; Plastics in the form of sheets, films, blocks, rods and tubes