Pyongyang, December 26 (KCNA) -- The Hoeryong Coal-mining Machine Factory in the DPRK concentrates its effort on the production of new-type optimized coal cutters.

The factory worked out the design in tens of days and manufactured necessary parts and accessories in a qualitative way.

Workers and technicians at the Huichon Power Station installed efficient estimator to produce much more electricity with the same quantity of water. They have obtained scores of goals of technical development this year, thus achieving successes in the readjustment and reinforcement project.

The Wonsan Communication Apparatuses Repairing Factory has attained scores of goals of technical development significant in developing new products and increasing productivity, including upgrading the four-axis digital machining center this year. -0-