Even in the days of the arduous march, the forced march when the country was in hard time, he took a measure to channel a large amount of fund to developing CNC technology. He personally indicated the phase-to-phase tasks the scientists should carry out to develop CNC machines.

He put forward the slogans "Keep your feet firmly planted on your land and look out over the world!" and "Break through the cutting edge!" to be held high by the local scientists in their research work.

His tireless efforts led scientists and technicians of the Ryonha Machine Factory to develop high-performance CNC machine tools in a span of 10 years and mass-produce them.

Lots of industrial establishments were updated and signal scientific achievements made in all fields of the national economy under his wise and energetic guidance.

The country also witnessed successes in satellite launch and underground nuclear test.

The DPRK people are now recalling Kim Jong Il's patriotic devotion to the industrial revolution in the country with the 49th anniversary of his start of work at the C.C., Workers' Party of Korea as an occasion, while hardening their will to push ahead with the building of a thriving socialist nation under the guidance of respected Marshal Kim Jong Un.