How Steel Was Tempered was a classic Soviet novel by Nikolay Ostrovsky. The novel tells the story of the growth and struggle of the Soviet steel workers in the 1920s. It describes the story of the protagonist, Pavel Kochagin, who eventually became an excellent steel worker and revolutionary through hard work, hard work, and self-struggle in a difficult environment. The following is the introduction of the characters and a summary of the content in the novel: 1 Paul Kochagin: The protagonist, a steel worker, became an excellent steel worker and revolutionary through hard work, hard work, and self-struggle in a difficult environment. 2 Zhuhelai: Paul's friend and colleague was an excellent steelworker and also a mentor and supporter of Kochagin. 3. Boris Borisov: A young steelworker who was Kochagin's rival and enemy. Ivan Frunze: Kochagin's mentor and colleague was a famous steelworker and revolutionary. 5 Marina Carloff: The daughter of a wealthy steel entrepreneur has a pure friendship with Kochagin, but she is also under pressure and temptation from her father and others. Alexander Khrushchev: The leader of the Soviet Union is an important character in the novel, which has a profound influence on the development and ending of the story. How Steel Was Tempered is a classic work that reflects the society and people's lives in the Soviet Union. Through the growth experience of the protagonist, Pavel Kochagin, it shows the social reality and people's lives in the Soviet era, and also reflects the historical background and values of that era.