Gold is pure, up to 999.99. China jewelry metal is new gold, which is legal and formal for jewelry. The quality of Au99.99 is the best quality stipulated by the state. The purity of gold can reach 999.99, which is safe and reliable. China gold adopts the world's highest purity gold material au99.999 in manufacturing, processing and retail, and its standard name is "high purity gold". China Gold has launched a series of high-purity gold products with nearly 100 products. The advent of high-purity gold is not only a historic breakthrough in China's gold smelting technology for a century, but also an important opportunity to satisfy consumers' constant pursuit of gold quality and enrich and improve the gold product market. Moreover, China Gold is mainly engaged in the survey and design, resource development, product production and sales and general contracting of non-ferrous metals such as gold, silver, copper and molybdenum. Gold resources control 1.200 tons, ranking first in the country; The reserve of copper resources is 8 million tons, ranking the top five in the national non-ferrous industry; The reserve of molybdenum resources is 6.5438+0.2 million tons, ranking the top three in the national non-ferrous industry. Due to the special background of gold in China, there are high requirements for the production quality and production procedures of gold. China gold is pure gold, which is the highest standard of jewelry recognized by the state. The purity of gold can be judged by looking at the color. For example, the higher the purity of gold after smelting, the brighter and darker the color will be. Generally, when the gold content is higher than 95%, it can reflect the wealth and luster of gold; Gold with a purity of 90%-95% will be a little red and light yellow in color, and its brightness will also decrease; Gold with a purity of 80%-85% will have a bluish yellow feeling in light yellow; Gold with 65%-70% purity will have obvious white light in blue and yellow; 50%-60% pure gold, only light yellow; Without 50% purity, the overall whiteness is white.