ΘΩΡΑΚΙΣΜΕΝΕΣ ΠΟΡΤΕΣ
http://emiliojaie017.withtank.com/the-advanced-guide-to-portes-asphaleias/
It's been a long time since we discussed security doors, so we thought it was high time for a refresher. Let's begin by advising ourselves what they are and why we require them. What is a security door, and why