The advantages of using glass short fibers are high precision in fiber length, high fiber content, and a common diameter of single fibers. The fibers adhere to good fluidity in segments before dispersing, and because they are inorganic, they do not generate static electricity. They have high temperature resistance, and the tensile strength in the product is common, forming a three-dimensional network structure, which makes the product have good flexibility and resistance, high impact strength, and the length of the fibers in each corner of the product is common. Therefore, the tensile strength of the product is common. However, fiberglass powder cannot achieve this because it is a destructive technology, and the length of the fibers cannot be guaranteed. There are also powders. As it is a waste material, there are many impurities in it, and the diameter of the single fiber is not guaranteed. The fibers are coarse and fine. Therefore, when added to the product, the strength cannot be guaranteed, and the strength values in each corner are different, making it easy to interweave and clump.