ΠΟΡΤΕΣ ΑΣΦΑΛΕΙΑΣ

http://emiliojaie017.withtank.com/30-of-the-punniest-puns-you-can-find/

It's been a long time because we went over security doors, so we thought it was high time for a refresher. Let's start by reminding ourselves what they are and why we need them. What is a security door, and why