“1st Class Piping Construction Management Engineering Examination Problem Explanation Collection Edition: Science 2015 Edition” Regional Development Institute Price: ¥4000 Passed in 2025 (56/60 points). The exam questions had many from the years 2005-2007 (for the 2025 exam), so you can definitely pass if you study past papers. In particular, there were many questions that applied the notes on the answers. If you prepare thoroughly with past papers up to this year, you can take the exam with confidence. Writing present (pencil and erasable ballpoint pen). There are underlines and marks in various places. Please purchase only if you don't mind that it is a used item.