Jewelry silver content is an important indicator of its quality. There are many silver content of the test methods can be divided into methods and instrumental methods of chemical analysis. Whether the destruction of jewelry based on the detection process can be divided into non-destructive testing method and lossy detection method, in the day-to-day inspection of the jewelry quality supervision departments generally non-destructive testing method, density combined with X-ray fluorescence spectrometry, electron probe analysis and other large equipment.
The silver stores 17 Market promotion directly recruit their own agents, slightly higher operating costs compared to the former. Another is that both factories and chain, such as old silversmith. With the rise of Taobao and Jingdong Mall and other e-commerce channels, online shopping and net sales of silver jewelry has also made good progress.
A, silver precious metals, symbol Ag, English for Silver. Silver, silver-white, the relative density of 10.49, melting point 961 ° C, alkali-insoluble and most organic acids, soluble in nitric acid and hot sulfuric acid and sulfur dioxide compounds turn brown Ag2S. Sterling silver is 92.5% silver 7.5% copper and other alloys, so that the hardness and luster of the silver has improved.
Draw inspiration from the womens embroidery and batik patterns. On the other hand, as a member of the lineage, but also in order to gain a competitive advantage in the peer, Miao silversmith according to the Department of customs and traditions, aesthetic taste, pay attention to detail or partial portray innovation. Commitment to technical excellence, Miao silverware and excel.
Non-silver-producing areas in Guizhou, silver processing raw materials on the history of silver, silver bullion. In other words, the Hmong sunrise and sunset, again and again, long years, will accumulate silver currency, almost all of them put into the furnace. Because of this, the silver purity of the silver around the local popular silver coins shall prevail.
Black silver inlaid technology: This is a decoration technology for silver alloy. This technique is widely used in the Middle East, Russia, Thailand. Black silver jewelry is engraved silver design with engraved or chisel to do at the end, and then fill in the pattern of pure black lead alloy of copper and silver, polished to reveal the silver patterns, black and white contrast, revealing the twelfth dignified.
Usually per person county has its own dedicated line. They is not confined only of the department or the national processing, along hundreds of miles of other branches or ethnic silver jewelry styles are clear in their internal organs, processing is also well placed to exploit, handy, so it can be called regional silversmith. According to the survey, the Southeast Guizhou silversmith walk footprint traverse the province, and extended to the north of Guangxi and Hunan West.
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