What is the aspect ratio of bookmarks?

Bookmark is a kind of reading label, which is made of paper, electronics, plant leaves and metal.

brief introduction

Bookmark pictures are random and widely used. Even used train tickets and plane tickets can be used as bookmarks. In addition to graphic content, art bookmarks are often innovative in materials and shapes. Bookmarks are more convenient and less damaging to books than folding books, so they are a good way to remember page numbers.

Bookmarks are not only paper, but also high-quality pure copper-zinc alloy raw materials, such as nickel-plated paint, sand-plated nickel, antique copper, pad printing, gold-plated paint, two-color electroplating, nickel-plated enamel, nickel-plated inlay and so on. This bookmark is called metal bookmark, which is an innovation in bookmark development. During the temple fair, you can see many metal bookmarks on Facebook, which represent the traditional culture of China.