This is a textbook for self-learners of the Grade 2 Boiler exam. It mainly explains the topics that appear on the test, so it's a text for people who already have some knowledge and are using it before the exam. There are no discounts, but if you purchase other products for over 10,000 yen and would like this, please let me know and I will give it to you for free. You will be responsible for the shipping costs. ◎ All items are used and sold as-is. We do not accept returns or complaints after shipping, so please understand this before bidding. If you are concerned, please do not bid.