City of Katowice. Types of metallurgical plants "Bathory" and the name of Kosciuszko. Production processes in the open-hearth shops of the Batory and Kosciuszko factories; in the blast-furnace and steel workshops of the Pokuy plant. Steelworkers G. Pustelnik, Elyas, K. Vadula, E. Chekh, G. Koval are working. Engineers Mazersky and Stankevich take a steel sample. Construction of the third blast furnace at the Kosciuszko metallurgical plant. Measuring the temperature of coke at a coke oven battery built with the help of Czechoslovak specialists at the Kosciuszko plant. Coke oven battery operation.