17 Semi-processed rubber and silicon; semi-processed synthetic resins; semi-processed plastic materials, namely, sheets, plates and rods; rubber clack valves for use in controlling fluids; gaskets; sealing and insulating materials; latex for industrial use; insulation jackets for industrial pipe; junctions, valves, jacks of rubber or silicone elastomer; sheets, plates and rods of semi-processed plastic material; couplings linings, namely, non-metal polyurethane lining for couplings; dampening pads, namely, shock absorbing padding and insulation material for use in further manufacturing; rings of rubber or silicone elastomer used as connection seals; water-tight rings for plumbing pipes; insulating bands, namely, insulation for machinery in sleeves, strips and sheets; weather-stripping for use in auto, rail, energy, health, off shore, agriculture, aerospace, defense, construction industries; stops of rubber or silicone elastomer, namely, door and window stops; padding materials of rubber or silicone elastomer; stoppers of rubber for industrial packaging containers; insulating material, namely, polyurethane sheets for use as insulation; elastic rubber-like material for use in the further manufacture of machine parts for use in auto, rail, energy, health, off shore, agriculture, aerospace, defense, construction industries; goods made of semi-processed plastic materials for use in the further manufacture of machine parts for use in auto, rail, energy, health, off shore, agriculture, aerospace, defense, construction industries; synthetic rubber and plastic materials for use in the further manufacture of machine parts for use in auto, rail, energy, health, off shore, agriculture, aerospace, defense, construction industries; adhesive bands other than stationery and not for medical or household purposes, namely, rubber adhesive bands for industrial or commercial use; shock-absorbing buffers of rubber and plastic materials, namely, shock absorbing rubber buffers for industrial machinery; rings of rubber for use as pipe connection seals; reinforcing materials not of metal for pipes, namely, thermoplastic materials used to enhance the strength of pipes; sealing strips, namely, polyurethane film in strip form for use in sealing and insulating; semi-processed friction materials for brake linings and clutch facings; semi-finished injected molded products of plastic for use in a variety of industries; pipe junctions, namely, junctions not of metal for pipes; washers of rubber; insulating fabrics; water-tight rings and rollers, namely, for plumbing pipes; rubber wheel chocks; semi processed elastomer for use in the further manufacture of shock absorbing springs for vehicles; semi processed plastic for use in the further manufacture of clamping vices for industrial and building purposes; tubes not of metal for handling industrial processes; semi processed plastics in the form of sheets, films, tubes, bars and rods for use in the manufacture of gears, sprockets and gear wheels; polyurethanes in the form of blocks for use in the manufacture of shock absorbing blocks and clamping blocks; flexible pipes not of metal; valves of rubber