How the Steel Was Tempered (Russian: Как закалялась сталь) is a 1942[1] Soviet drama film directed by Mark Donskoy.
[2][3][4] The film is based on the eponymous novel by Nikolai Ostrovsky.
How the Steel was Tempered was a frequent cultural reference point for workers during China's Third Front construction campaign to develop basic industry and national defense industry in China's interior.
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