Topaz is the birthstone of November, also known as Topa (TOPAZ). It is said that the original meaning is "difficult to find." In fact, topaz is not necessarily yellow, high-quality brown topaz is like "Sherley", but also golden yellow; light blue topaz is also called "Ceylon sapphire", which is quite valuable; there is colorless topaz, which was used in the past. It is called "slave diamond". The dispersion and brightness are not very good and the value is limited. The colors such as purple and pink are very rare and valuable.
As a gemstone of topaz, the color must be gorgeous. Topaz has a relatively complete cleavage and poor toughness, so don't beat or drop it. Topaz can't usually be a ring face, only when it is packaged. Most topaz has spotted, cracked, etc., can not pick the topaz with the choice of diamonds, of course, the cleaner the better, the texture should feel soft and smooth, on this basis, the darker the color, the more valuable. Experts say that the finest purple and pink topaz is valuable. The "Snow" color is also called "Emperor Topaz", which is the treasure, then the blue and the general yellow.
Daily chemical industry
Self-adhesive labels have been widely used in the daily chemical industry. It is understood that before the eye, the proportion of domestic daily chemical products using self-adhesive labels as labels is more than 30%, and according to statistics, before the eye of the domestic market self-adhesive labels still maintain a rapid growth momentum in the daily chemical industry, and has been more widely used, label materials will also develop to a high level and diversified direction.
Daily chemical products have higher added value, so many brands, fierce competition. Consumers choose a product from a wide range of goods, product packaging is the key factor to attract consumers, and the most important packaging of daily chemical products is the label, it can be seen that the delicacy of the label plays a key role. Self-adhesive label can perfectly reflect the requirements of the label.
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