7 Machines and apparatus for constructing, maintaining, inspecting, cleaning, servicing, repairing and renovating pipelines
17 Flexible pipes, not of metal; lining tubes for renovating pipelines; woven films of plastic for internally sealing pipelines; glass fibre-reinforced resins [semi-finished products]
37 Civil engineering underground construction services; construction, installation, inspection, cleaning, servicing, repairing and renovating pipelines; installation of linings in pipelines
1 Adhesives for use in industry; artificial resins (unprocessed); artificial resins