Thank you for viewing. This is the "Public Building Construction Standard Specifications (Electrical Equipment Works Edition) 2022 Edition." Supervised by the Minister's Secretariat, Government Buildings Department, Ministry of Land, Infrastructure, Transport and Tourism, and published by the Public Building Association, it is a "national unified standard." 【Retail Price】 ・Price including tax: 5,500 yen (5,000 yen + 10% tax) 【Condition】 ・Product condition: Near new ・The cover has some scratches, slight stains, and small marks from storage. ・The contents have been used very little, and there are no tears or folds. There was one spot marked with a Frixion pen, which has been erased. ・It is in a clean condition, with no problems for reading or practical use. 【Contents/Uses】 ・Standard specifications for electrical equipment works in public building construction (government projects) ・Essential materials for site supervisors, construction management, design, estimation, and inspection ・2022 edition ※This is a used item that has been handled by a person once. Please purchase only if you understand the condition. Everything in the photos is included. We will take waterproof measures, carefully pack the item, and ship it promptly. Please feel free to comment if you have any questions.