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Glass surface roughness is a system of standards for assessing and classifying glass surface roughness. Surface roughness is usually expressed by “Ra”value.The higher the Ra value, the rougher the glass surface; the lower the Ra value, the higher the smoothness of the glass surface.

In the previous article, we discussed Aluminum-silica Glass. When we think of Aluminum-Silica Glass, the first thing that comes to our mind is its excellent transmittance, high clarity, and high color reproduction.