Framework agreement prefabricated concrete elements for municipal engineering installations:

— Concrete pipes for sewage water;

— Concrete manholes;

— Sewage manholes.

For Bamble, Drangedal, Kragerø, Porsgrunn og Skien municipalities.

Siljan municipality has the option to join the framework agreement.

The framework agreement has a duration of 2 years, with an option to extend it for 1 + 1 year.