17 Junctions for pipes comprised primarily of rubber and also containing metal; junctions for pipes comprised primarily of plastic and also containing metal; pipe couplings and joints of plastic; oil absorbent foils, sponges, pads, pillows, sheets, films, cords, ribbons, fences, mats, tubes, streamers, flags, blocks, balls and pellets for containing oil spills; oil adsorbent foils, sponges, pads, pillows, sheets, films, cords, ribbons, fences, mats, tubes, streamers, flags, blocks, balls and pellets for containing oil spills; seals, namely, rubber seals for jars, non-metal sealing rings for use as connection seals, cylinder joinings, packing material for forming seals; pipe couplings and joints, not of metal; floating anti-pollution barriers; chemical fiber composed of plastics for use in manufacturing products in the fields of food packaging materials, medical packaging materials, paper products, paints, coating materials, construction materials, building materials, cosmetics, toiletry, commodities, sanitary materials, vehicle, furniture materials, plastic materials, industrial materials, industrial equipment and machinery; chemical fiber yarn and thread composed of plastics for use in manufacturing products in the fields of food packaging materials, medical packaging materials, paper products, paints, coating materials, construction materials, building materials, cosmetics, toiletry, commodities, sanitary materials, vehicle, furniture materials, plastic materials, industrial materials, industrial equipment and machinery; plastic films for agricultural purposes; semi-finished plastic composite materials jointed, hybridized and integrated with metal for use in further manufacture; plastic sheeting for agricultural purposes; protective film of plastic, other than for wrapping, for use in commercial or industrial manufacturing; flexible pipes, not of metal; flexible tubes and hoses, not of metal; self-adhesive tapes for industrial or commercial use and other than for stationary and not for medical or household purposes; metalized plastic films, other than for wrapping, for use in manufacturing; adhesive tapes for industrial purposes; plastic films for protecting surfaces, for use in industrial applications; plastic semi-worked products, excluding molded and extruded semi-finished plastic for use in the manufacture of fasteners consisting of a series of interlocking hooks used in the manufacture of industrial products, consumer and household products, and packaging therefor; foamed plastic sheets, excluding molded and extruded semi-finished plastic for use in the manufacture of fasteners consisting of a series of interlocking hooks used in the manufacture of industrial products, consumer and household products, and packaging therefor; piezoelectric plastic films; piezoelectric plastic sheets for use in manufacturing; metalized plastic sheets, other than for wrapping, excluding molded and extruded semi-finished plastic for use in the manufacture of fasteners consisting of a series of interlocking hooks used in the manufacture of industrial products, consumer and household products, and packaging therefor; artificial resins; semi-finished rubber composite materials jointed, hybridized and integrated with metal; semi-finished plastics in the form of sheets, other than for wrapping excluding molded and extruded semi-finished plastic for use in the manufacture of fasteners consisting of a series of interlocking hooks used in the manufacture of industrial products, consumer and household products, and packaging therefor; plastic film, other than for wrapping for use in manufacturing; plastic film other than for wrapping for commercial and industrial use, excluding molded and extruded semi-finished plastic for use in the manufacture of fasteners consisting of a series of interlocking hooks used in the manufacture of industrial products, consumer and household products, and packaging therefor; plastic films for use in the manufacture of plastic films used as packaging for food; heat-shrinkable plastic films, excluding molded and extruded semi-finished plastic for use in the manufacture of fasteners consisting of a series of interlocking hooks used in the manufacture of industrial products, consumer and household products, and packaging therefor; plastic substances, semi-processed, excluding molded and extruded semi-finished plastic for use in the manufacture of fasteners consisting of a series of interlocking hooks used in the manufacture of industrial products, consumer and household products, and packaging therefor; thermal insulating, soundproofing, and acoustic insulation materials made of plastics; raw gum; synthetic rubber