Those active at the Hwanghae Iron and Steel Complex successfully carried out several technical innovation tasks, including the remodeling of cooling jacket made by through creative cooperation with field technicians.

Those of the Sariwon Textile Mill reformed gripper weaving machine into pneumatic jet loom and invented a method of producing adhesive with wastes, thus raising the utilization rate of weaving machines and contributing to the recycling for raw and other materials.

Similar successes were witnessed at the provincial tree nursery and other units.