1 NATURAL AND SYNTHETIC RUBBER FOR MOLDING AND EXTRUSION PURPOSES; NATURAL AND SYNTHETIC RUBBER IN THE FORM OF SHEETS, RODS, TUBES, BLOCKS, EXTRUDED SECTIONS, POWDERS, LIQUIDS AND PELLETS
12 NATURAL AND SYNTHETIC RUBBER CONSTRUCTION MATERIALS-NAMELY, SOUND DEADENERS AND DAMPERS, SOUND BARRIER CURTAINS, VIBRATION AND SHOCK ABSORBING INSULATION