fencing, railing and safety equipment installation work./ k1 - enclosure day facilities, 2.ba./ the following service has been declared classified information. the terrain of the konrad 1 mine is to be enclosed with a double security fence. in addition to the fence itself, the fence system also includes ten revolving gate systems, a sliding gate system and a turnstile system. the main parts of the double security fence system have already been erected - with the exception of approx. 90 m double fence and part of the inner fence system with the sliding gate system and the turnstile system. the components required for this – with the exception of the sliding gate system and the turnstile system – have been manufactured and are stored in the konrad 1 mine in salzgitter. the sliding gate system and the turnstile system are still to be prepared on the basis of an existing plan.