OREANDA-NEWS. January 21, 2007. In the coking workshop of “Koks” public corporation modernization of the door-extracting machine №4 was finished. This unit will allow increasing greatly the effectiveness of emissions trapping during coke drawing. Machine tests have shown that the effectiveness of dust trapping has already increased twice as much. Similar work in modernisation of the door-extracting machine №5 is planned for January. The whole work is made by specialists of coking workshop and SCRKO-2.