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Iron and steel: Quality standards 4 - Mechanical engineering and toolmaking - Steel for mechanical engineering (general and specific). Precision steel tubes. Steel for toolmaking. Open-die steel forgings. Spring steel. Heat treatment.
Iron and steel: Quality standards 4 - Mechanical engineering and toolmaking - Steel for mechanical engineering (general and specific). Precision steel tubes. Steel for toolmaking. Open-die steel forgings. Spring steel. Heat treatment.
