Pre-qualification of bidders No. 2724521 
Performance of works on sealing of places of passages of technological pipelines through the roof of the sleeve in axes 14-21 and A-A/2 K. 404 in accordance with RD 1021.20-404-AR-AN4, 1021.20-404-AR-AN5; in axes 28-29/W K. 403.4 in accordance...