The Ministry of Railways set it as an important task to ensure the safety of railways and raise the intensity of railways, and has carried on the meticulous organizational work to produce and replace concrete sleepers and railway fixtures.

The Chongjin Concrete Sleeper Factory has made achievements in production by improving the technical condition of equipment and applying efficient working methods.

The Sungho Concrete Sleeper Factory has put the production on a normal basis at a high level while intensifying technical guidance, equipment repair and labor mobilization.

The Haeju Railway Branch has produced many railway fixtures to improve the railways in the section under its charge.

The Kaechon Rolling-Stock Parts Factory has made successes in the railway fixture production by giving priority to the introduction of new technology.