6
Metal seals; seals of metal for pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor; seals of metal for preventing leakage of fluids; discrete sealing elements of metal; discrete sealing elements of metal for stopping leakage from pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor; discrete elements of metal for temporary blockage of pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor; discrete elements of metal to investigate pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor; parts, fittings and accessories for the aforesaid goods
17
Sealants for seals; sealants for pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor; materials for stopping; discrete sealing elements for stopping leakage from pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor; discrete sealing elements of plastics material for stopping leakage from pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor; discrete sealing elements of polymer material for stopping leakage from pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor; discrete sealing elements of rubber material for stopping leakage from pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor; discrete elements for temporary blockage or investigation of pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor; plastic materials for use as seals in civil and mechanical engineering; polymers for use as seals in civil and mechanical engineering; plastic materials in the form of small plastic sheets for introduction into pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor to investigate fluid flow therein; parts, fittings and accessories for the aforesaid goods
20
Plastic materials in the form of small plastic pieces for introduction into pipes, pipelines, pipeline systems, risers, liners, casings, tanks, storage tanks, ballast tanks, valves, valve assemblies, manifolds, umbilicals, clamps, wellheads and other pressurised systems, and couplings therefor to investigate fluid flow therein; plastic materials for use as temporary blockages in civil and mechanical engineering; parts, fittings and accessories for the aforesaid goods