O que significa au9999 "Au9999", é um método de expressar a pureza do ouro estipulada pelo estado. As joias de ouro devem ter esse tipo de marca. "Au" é o símbolo do elemento químico do ouro. Mostra que este enfeite de metal é feito de ouro. "9999" indica a pureza do ouro (ou seja "teor de ouro"), aquilo é, the gold content of this ornament is 99.99%. This kind of gold is commonly known as "Four Nine Gold", the golden brick in the general treasury.
Gold with a gold content equal to or greater than 999.9‰ is commonly referred to as "Wanzu Gold Series" ou "Wanzu Gold" ou "999.9 Ouro". Portanto, the million gold is definitely thousands of gold, but the thousand gold is not necessarily the gold. In the production process of AU9999 gold jewelry, using the characteristics of high temperature autolysis of gold, using laser laser spot welding, touch welding technology, to achieve autolysis welding of gold, without adding any auxiliary materials, abandoning the traditional process of "adding flux" , So as to ensure that the purity of gold jewelry does not decrease, to achieve the purity of raw materials.
Qual é a diferença entre 9999 ouro e 999 ouro? The digital sign of gold represents its purity, 999 is thousands of gold, and the purity of gold is 999/1000; 9999 é 10,000 ouro, representing the purity of gold is 10,000 Thousand nine hundred and ninety, a difference of nine ten thousandths. A diferença entre 999 e 9999 is mainly the purity. 999 é 99.9% ouro, e 9999 é 99.99% ouro. Contudo, when making jewelry, 99.9% is the highest because it needs welding. If jewelry 9999 is fooled, gold bars Generally 9999.
Na verdade, the prices of 999 e 9999 are basically the same. Geralmente, the raw materials of large-scale jewelry are 9999 gold nuggets, and the jewelry can only be made of 999 thousand gold or pure gold.
The national standard of 9999 ouro e 999 only defines 999 mil ouro, which means that the thousand gold is the highest purity. Even if 9999 gold is sold, it cannot be detected at the time of purchase, so we can only say that 9999 is a kind of The high-purity gold mentioned in the market is called "million-foot gold" by the public, and it sounds higher than "thousand-foot gold". Na verdade, when you understand the percentage mentioned above, você sabe que não importa quão alta seja a porcentagem, não haverá 100% ouro puro.
Na verdade, pelas joias que usamos, 999 ouro é suficiente, não importa a cor, pureza, e fabricar milhares de ouro atingiu o mais alto nível de joias, geralmente usar algumas joias de material au750 também é uma boa escolha. Se você estiver interessado em 9999 ouro, você pode querer escolher este tipo de pureza de metais preciosos ao coletar.