17 Asbestos ropes; rubber bars and rods; rubber solutions; insulating tapes; tapes for pipe joints; flexible hoses, not of metal; fittings, not of metal, for flexible pipes; fittings, not of metal, for rigid pipes; junctions, not of metal, for pipes; pipe fittings, not of metal; non-metal elbows for pipes; reinforcing materials, not of metal, for pipes