17
Gaskets, seals and closures; Flexible pipes, pipe reinforcements, not of metal, pipe seals, pipe covers and pipe liners, not of metal; Silicone pipes; Silicone branch pipes for pipelines; Silicone sealants for pipelines; Silicone rubber channels; Fibreglass branch pipes for pipelines; Compounds for pipe lining and sealing; Pipe parts, not of metal, pipe fittings consisting mainly of plastic; Protective bags for installation inside pipelines to protect them; Rubber plugs; Tapes; Water and moisture insulation goods
19
Construction materials; Rigid pipes, not of metal; Rigid pipes, not of metal, for building; Insulated pipes (Non-metallic -) for water; Pre-insulated bonded pipes (Non-metallic -) for building; Rigid pipes of plastics [other than parts of sanitary installations]; Rigid pipes, not of metal; Geotextiles
37
Plumbing; Installation of tubular linings in pipelines; Maintenance and repair of pipelines; Rental of machinery, equipment and supplies for the installation and renovation of pipelines and pipes, and consultancy related thereto; Providing information on pipeline maintenance, upkeep and renovation; Consultancy relating to renovation of pipelines and buildings
41
Educational and teaching services relating to pipelines and pipeline renovation; Educational and teaching services relating to pipeline renovation for machinery, apparatus and supplies