Není železo jako železo (1950)

Document about a new method of producing ductile iron in induction furnaces, which is the first in the world to be carried out in Czechoslovakia.

• Release Date: 1950-03-10
• Runtime: 1h 36min
• Production Company: Krátký film Praha
• Production Country: Czechoslovakia
• Director: Ján Šmok
• Writer: Ján Šmok