... saving; 3.Easy maintenance 4.ISO9001:2000 Coal briquette machinery specifications1.It is mainly used for anhydrous materials ... coal ash, coal mud, coke powder, coking coal, iron ore concentrates, chromate ore concentrates, mgo power, copper power, ... high efficiency, energy saving and environment protection. Coal briquette machinery technical parametersModelYQJ-290YQJ-360YQJ-400YQJ-500YQJ-650YQJ-750YQJ ...