Glass glasses are divided into two kinds of crystal glasses, which are made of artificial crystals of various colors (containing 24% lead dioxide) and dewaxed by ancient bronze casting method at high temperature. Heavy metals are lead dioxide. But now the lower prices are generally imitated glaze, water glass, resin, or crystal glass instead.
Crystal Cup: Natural Crystal and Artificial Crystal. Natural Crystal, if it is, should be very good, natural health function is very good. Artificial Crystal, that is, high-lead glass, or lead crystal glass, that is, ordinary glass (ingredients are silicon dioxide) added 24% lead oxide, will be similar to the brightness and transparency of natural crystal. Artificial crystal. Lead oxide content of different artificial crystals made of different grades, the object is clear, bubble is not obvious. Now many crystal lamps, crystals and other things, in fact, are crystal glass, that is, artificial crystal, better than window glass.
The glass is simple and silica is the main ingredient. The lead content is relatively small.
Glass and crystal glass (not natural) process is different, composition is similar, no subordinate relationship. Crystal glass and glass words and composition is similar, crystal glass contains lead oxide, can be understood as glass reprocessing. The obvious difference is:
1. The price of the crystal cup is higher than that of the ordinary glass. Especially the crystal cup from abroad, such as Italy and Austria, is the best producer of the crystal cup.
2. Permeability, because the two raw materials are different, resulting in wine tasting effect is also different, because the crystal permeability is far higher than ordinary glass, when watching the color of wine, crystal cup can more accurately and clearly reflect the color of wine.
3. Cup wall hardness, crystal cup generally with a stronger than ordinary glass hardness, wear resistance. Quality of the crystal cup should be high transparency, the outer wall is hard, the impact will produce a crisp sound, after the collision of the cup quickly to the lips, you will feel the shock like an electric shock, that is the "crystal cup kiss".
