The book is in good condition as I used a cover while studying. There are no markings. I have not removed the cover. Thank you. 2025 edition of the Refrigerating Machine Technician exam model answer collection, including exam questions and answer explanations. - Title: 2025 Edition, Class 1 & 2 Refrigerating Machine Technician Exam Model Answer Collection - Publication Year: 2025 - ISBN: 9784305321106 - Target Years: 2024 - 2020 - Contents: Includes exam questions and answer explanations - Features: Answer explanations are in a separate booklet for easy understanding Thank you for viewing.