"High-Pressure Gas Manufacturing Safety Manager Exam, Class C Chemistry (Liquefied Petroleum Gas) - Practice Exam Collection" by Yasuhiko Miyoshi Price: ¥3500 This book covers 7 exams, so you can pass if you thoroughly study it. I am selling it because it is no longer needed after passing the exam. Please consider purchasing only if you understand that there are markings such as circles and crosses on the questions. #YasuhikoMiyoshi #Yasuhiko_Miyoshi #Book #Engineering/Industry/Other