fierul

Cristian Presura la Jurnalul de stiinte https://www.digi24.ro/stiri/sci-tech/de-ce-rugineste-fierul-1071108?fbclid=IwAR3aGt7BWdB2yd7GogRtU0SCSc2I7wUtRFv4HpFfJyQV_TQPYLFrMzeLLO0