With a deeper understanding of some respiratory diseases, such as asthma, emphysema, chronic bronchitis and chronic obstructive pulmonary disease (COPD).

According to the properties of dissolution and release, the capsules are mainly divided into two types, gastric soluble capsules and enterosoluble capsules.   

Ethylene oxide is an organic chemical compound with the chemical formula C2H4O. Strong ability to sterilization, and can kill bacteria (and spores), mold and fungi.