2. Paper clips, also known as swastikas, paper clips, paper clips, are stationery that can temporarily fix paper. They are of different shapes and have double circulation structures, which are similar to the functions of staplers and long tail clips. Paper clips are generally made of stainless steel, white iron, copper and plastic, which are flexible and not easy to break.
3. Paper clips, that is, paper clips, are gadgets made by bending metal wires back and forth, which help you to clip files or papers in your work and life.
The paper clip seems to be the simplest of all inventions. It's just a short piece of bent metal wire and a piece of paper. But the paper clip was designed many times to make the shape we use today.