Expand the source of coking coal coking method. With a press molding method to produce coke of a uniform shape. Formed coke process of both hot and cold. The hot coke is forming carbonization of coal (or single coal) will have a certain cohesiveness heated to the plastic temperature (typically 800 to 1000 ° C). Cold coke is low volatile weakly caking coal or non-caking coal, the high volatile coal or not bonded semi-coke of coal, together with the right amount of binder, the binder softening after molding temperature (typically 70 to 100 ° C) carbonization (individual unheated molding). Type naphthalene process equipped with a non-caking coal and weakly caking coal in the proportion of greater flexibility, and can produce coke having a certain intensity.