Polycrystalline silicon is the direct raw material for the production of monocrystalline silicon. It is a single crystal of silicon with basically complete lattice structure. So what is the difference between monocrystalline silicon and polycrystalline silicon? Next, let's learn the difference b...

Recently, the first section of Zhejiang Hangzhou shaotai expressway was officially opened to traffic, 3 months ahead of the original plan. Hangzhou shaotai expressway is the first in Zhejiang's history...