Director: Midhat Mutapčić
Screenwriter: Midhat Mutapčić
Cinematografpher: Aleksandar Vesligaj
Music: Ruža Cvingl
Editor: Ruža Cvingl
A film about construction workers who specialize in building fire-resistant industrial furnaces. This job was created in 1948 when local workers had built the first industrial furnace in Yugoslavia and it developed in step with the overall industrial development of the country. Employees of Zenica-based Company Vatrostalna build fire-resistant furnaces in Yugoslavia and abroad.