Posachedwapa, gulu la ma valve a DN1200 ndi DN1000 otuluka ku Russia alandiridwa bwino. Gulu la ma valve a chipata ichi lapambana mayeso a kuthamanga kwa mpweya komanso kuwunika khalidwe. Kuyambira pomwe polojekitiyi idasainidwa, kampaniyo yachita ntchito yokhudza kupita patsogolo kwa malonda, kulongedza zinthu ndi kukonzekera deta. Kuvomerezedwa komaliza kwatha bwino.