This book condenses ""Prohibition items"" in order to make workshop drawing. The main points are clear at a glance by a comparison drawing of good and bad examples. This book is gathered and edited by the members of our Study Group, who are good at making workshop drawing. This book are focused into only making workshop drawing. And this book is mainly descrived by not explanation but drawing. So, even if beginner engineers can understand easily. Now, this book is adopted every year as a training material for new employees by many building mechanical system construction companies, dispatch companies and others.

施工図作成の「べからず」を凝縮。良い例・悪い例の対比図で要点が一目瞭然。 設備システム研究会の会員の中から施工図作成に卓越したメンバーが集まり、NG事例を出し合って編集しました。今回のべからず集の内容は図面を書くためだけ特化したNG事例を集めました。 出来るだけ文字での説明を少なくし、悪い例、良い例を作図で表現し一目で初級技術者が理解できることを心掛けました。現在、設備会社などの新入社員教育及び派遣会社などの教育などでべからず集が教材として採用されています。

The contents are specifically designed for the purpose of creating working drawing .

We have tried to reduce the number of textual explanations as much as possible, and to make it easy for beginner engineers to understand at a glance by using drawings to illustrate bad and good examples.

Currently, this book is used as a teaching material in training programs for new employees of plumbing and air-conditioning system construction companies and temp agencies.