Researchers at the Mining Engineering Institute of the Academy of Coal Science developed a pneumatic motor-powered rotary puncher to be used in coal pits filled with gas and a pneumatic saw for cutting props and sent them to over ten coal mines.
The Sunchon Mining Engineering Institute developed a new blasting method to increase tunnelling speed by 1.2 times as compared to before and established a drill production process, the Kaechon Coal Mine set up a hard alloy heat treatment process to increase the lifespan of drilling heads and the Hyongbong Coal Mine invented a wagon rectifier protection device.
The Pyongyang Railway Bureau transported 130 000 tons of more coal for thermal power generation in October as against the same period of last year.
The West Pyongyang Locomotive Corps overfulfilled its transport plan of coal for the Pyongyang Thermal Power Complex and the East Pyongyang Thermal Power Station.
The Pukchang railway branch bureau increased the operation rate of locomotives, improved the capacity of mending freight cars and scrupulously arranged the provision of freight cars and the loading of coal for thermal power stations, thereby ensuring a 1.3-time increase in transportation as compared to the same period of last year.
The Chonnaeri Cement Factory installed a new type of cyclone, applied over 10 technical innovation plans and finished the overhaul of the kiln in a short time.
The Pyongyang Cosmetics Factory turned out new functional cosmetics for skin protection, makeup, hairdressing and cleansing in the course of deepening analysis of domestic and international trends of cosmetics development.
Recently, six kinds of its Unhasu-brand cosmetics including cream, milks and lotion made with rose and mung beans received quality certifications from the Eurasian Economic Union, an influential economic body in Asia and Europe.
The factory has developed new types of packs for different skin parts and curative creams by using the essence of natural Koryo medicinal materials abundant in the country, while raising the ratio of locally available materials and additives in the production of various kinds of cleansing and whitening cosmetics.
The shoe-making industry sector brought out hundreds of kinds of new products.
The Wonsan Leather Shoes Factory developed over 100 kinds of leather shoes that suit the taste and liking of locals by relying on domestic materials and equipment and raised the quality of Maebongsan-brand leather shoes a level higher by developing an automatic sole gumming machine for saving materials and an automatic pattern sewing machine.
The Ryuwon Footwear Factory introduced an adhesive solvent and other agents into production and established a moccasins production line which relies on an outer rim knitting machine.