The Secret of Rapid (1930)

NR | Jan 01, 1930 (SU) | Drama | 00:56

https://vufku.org/found/sekret-rapidu/

Lazar, an old worker, does not want to share the secret of hardening rapid, a high-quality steel. The workers have no choice but to find their own original way to harden steel that is as good as rapid...