Heat treatment of soft and medium steels theory and practice of the preliminary heat treatments designed to give maximum toughness to steels used for machine parts. This book, "Heat treatment of soft and medium steels theory and practice of the preliminary heat treatments designed to give maximum toughness to steels used for machine parts. Volume 2", by Federico Giolitti, is a replication of a book originally published before 1921. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.