Cute Variety Button Mobile Phone Theme

Some people like philatelic, some people like to collect good-looking photos, and some people like to collect unique buttons. They will carefully protect the beautiful buttons and give them unnecessary memories. Each button will have its historical commemorative value. Button mobile

Why should glass knives cut glass?

[Zhongbo.com] Kerosene increases the surface tension of the glass, does not explode, and the cut surface is smooth. If you use a glass knife to scratch the surface of the glass that has not been rubbed, you will see glass flakes flying on both sides of the knife edge. Open, ru