Benchmarking management was initiated by Xerox Corporation of America in 1979. Through comparative analysis

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