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cast iron adjective

  • Durable; tough; resilient.
желе́зный
  • Inflexible or without exception.
жёсткий, стро́гий, суро́вый
  • (not comparable) Made of cast iron.
чугу́нный

cast iron noun

  • A hard and brittle, but strong, alloy of iron, carbon, and silicon, formed by casting in a mould.
чугу́н, чугун
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