23 : Fluid systems and components for general use

23.040 : Pipeline components and pipelines

23.040.01

Pipeline components and pipelines in general

23.040.03

Pipelines and its parts for external water conveyance systems

23.040.05

Pipelines and its parts for external sewage systems

23.040.07

Pipelines and its parts for district heat

23.040.10

Iron and steel pipes

23.040.15

Non-ferrous metal pipes

23.040.20

Plastics pipes

23.040.40

Metal fittings

23.040.45

Plastics fittings

23.040.50

Pipes and fittings of other materials

23.040.60

Flanges, couplings and joints

23.040.70

Hoses and hose assemblies

23.040.80

Seals for pipe and hose assemblies

23.040.99

Other pipeline components