In this regard, Jang Won Sang, an official of the Ministry of Railways, told KCNA:

Non-point of contact rails were laid between Yomju and Naejung stations for the first time in the country. Since then, thousands of kilometer-long rails have been replaced by non-point of contact rails on a nationwide scale.

And the stationary and mobile rail butt-welders were further perfected in a technical aspect and the work for changing sleepers into concrete ones has been stepped up.

The ministry is scheduled to lay non-point of contact rails in six sections this year.