OREANDA-NEWS. April 18, 2008. In the coke department of OAO " Koks " there is proceeding a replacement of doors in coke furnace battery No. 3. Necessity of urgent repair has been caused due increase in gassing. Reconstruction of doors will allow to decrease gassing and as consequence, to reduce influence on an environment. In the coke department there is organized a round-the-clock activity: at the machine side of the coke furnace battery the specialists replace by six doors in a week. From 71 doors 25 pcs are already replaced.