The glass plate liquid level gauge is a direct-reading liquid level measuring instrument, which is suitable for on-site detection of the liquid position in general liquid storage equipment in the industrial production p...
Many people are struggling with this issue. Some materials say that optical instruments are made of quartz glass, and some people say that optical instruments are made of quartz crystal.
Everyone knows quartz glass, so presumably everyone hasn't learned about the density of quartz glass. Then, I will tell you a little knowledge about the density of quartz glass.
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