[ Plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal; elastic yarns, not for use in textiles; threads of rubber, not for use in textiles; plastic fibers, not for use in textiles; threads of plastic materials, not for textile use; insulators for electric mains; electrical insulators; insulators for cables; insulators for electric mains; reinforcing materials, not of metal, for pipes; insulating tape, namely, insulating mat...