MAVEG® is producing machine equipment for the coke industry, especially for grinding and homogenizing of coke tar. MAVEG® has known for many years from Western Europe, China, Taiwan, India, Vietnam and other parts of the world that most coke industry is working with open systems for tar separating (decanter), where many toxic ammonia gases enter the atmosphere. MAVEG® thinking environmental protection is now calling for the elimination of the emission of toxic gases, so that the open systems will have to be optimized globally in the future. Also, the health of the people which are working in this area is endangered by the toxic gases.