ΘΩΡΑΚΙΣΜΕΝΕΣ ΠΟΡΤΕΣ
http://jasperditj185.aircus.com/a-trip-back-in-time-how-people-talked-about-20-years-ago
It's been a long time given that we talked about security doors, so we thought it was about time for a refresher. Let's begin by advising ourselves what they are and why we need them. What is a security door, and