High borosilicate glass is a kind of glass with low expansion rate, anti-high temperature, high strengthens, high hardness, high transparency, and high chemistry. Duocai glass series are made after a high temperature of over 600 degrees. Its features are: clear transparence, wear resistance, clear surface, easy-cleaning, healthy; some precuts are made by double-insulated which could not only keep the degree of tea, but also is easy for drinking.
Source:
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