Granules are Granules made by matching main materials with appropriate auxiliary materials. Generally, they can be divided into soluble Granules, suspended Granules and foaming Granules. If the particle size is in the range of 105-500 microns, they are also called fine Granules. Its main characteristics are that it can be swallowed directly, or flushed into water to drink, easy to use and carry, and fast dissolution and absorption.