It is mainly the function of decoration, decorative bags.
Round nail, a kind of steel nail. Black heart nails are usually made of small round nails.
Ordinary round nails, also known as iron nails, are made of steel wires drawn from hot-rolled low-carbon wire rods and processed by nail making machines.
Nails refer to pointed hard metal (usually steel) used to fix wood and other objects. Hammers drive nails into objects. Recently, electric nail guns and gas nail guns have appeared. The reason why nails can stabilize objects is that they are hooked on them by their own deformation and rely on friction. Nails are one of the most common things in decoration. Iron nails are also called iron nails, and steel nails are also called steel nails.
In engineering, carpentry and construction, nails refer to pointed hard metal (usually steel) used to fix wood and other objects. Hammers drive nails into objects. There are also electric nail guns and gas nail guns. The nail, which can stabilize the object, is hooked on it by its own deformation and relies on friction.