Delicate1 03-1. Glass / History of glass Today, let’s take a look at a beautiful but fragile friend, Glass. When we all stand in front of the glass, we are worried about breaking the window out of our guard for a moment, so we are careful :) Oh, of course, there is also really hard glass. If you drop your smartphone while on the road, Have you ever seen everyone who walked around hold their breath and flip their smartphone over? My hea.. 2021. 2. 4. 이전 1 다음
