The Ryongsong Machine Complex, the Taean Heavy Machine Complex, the Rakwon General Machine Enterprise and other industrial establishments provided various accessories and parts needed for the manufacturing of combined rice threshers ahead of schedule.

After finishing the production of combined rice threshers, they made a trial operation and checking of them to ensure high working efficiency in the field.

Officials and workers in the machine-building industry are now putting steady spurs to the production of custom-built equipment to be sent to different sectors of the national economy.