With the development of China's manufacturing industry, the social demand for filters is also increasing, users will also choose a better material when choosing filter, and in the filter, the filter made of the screen is the best of this kind of product. In fact, the screen filter is everywhere around us, for example, there is a filter in the domestic faucet, which is used to filter impurities in water and improve the quality of water, which is beneficial to our health. In addition to being used in our daily life, a screen filter is more used in a variety of instruments, at the same time, the shape of the filter is also diverse, not single. Circular and square filters are most needed, which are installed in machines to help filter unwanted substances or use filters directly as filtration machines. However, the filter is not only these two shapes, this kind of product can be freely made according to the needs of users to make a variety of shapes, which is easy for users to use.