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 | March 10, 1950 | |
|---|---|---|
| Status | Released | |
| Original Title | Není železo jako železo | |
| Runtime | — | |
| Budget | — | |
| Revenue | — | |
| Language | Czech | |
| Original Language | Czech | |
| Production Countries | Czechoslovakia | |
| Production Companies | Krátký film Praha | |