vídeos de stock e filmes b-roll de aluminium melting, operator work hard tapping molten metal from ladle to holding furnace die casting machine - siderurgia00:23
vídeos de stock e filmes b-roll de aluminium melting, operator work hard tapping molten metal from ladle to holding furnace die casting machine - siderurgia00:11
vídeos de stock e filmes b-roll de melting gold in the gold foundry, making gold ingot, pouring liquid gold to plate - siderurgia00:10