On June 22, 2017, the three-day "17th World Pharmaceutical Raw Materials China Exhibition" (CPHI CHINA 2017) successfully concluded in Shanghai New International Expo Center.

Silica gel has strong moisture absorption capacity, so it should be stored in a dry place, and there should be a shelf between the packaging and the ground.

Silica gel is divided into: coarse-pore silica gel, B-type silica gel, fine-pore silica gel according to its pore size. Due to the different pore structures