What does AU900 gold mean? AU is the chemical symbol of gold, and 900 indicates that the gold alloy contains 90% pure gold. Pure gold refers to the gold alloy with purity above 85%, so AU900 pure gold is the gold alloy with 90% pure gold. This gold alloy is usually used to make jewelry, because it is pure enough, has the high-grade quality of gold, and is durable enough not to be deformed or rusted.

AU900 gold is widely used. It is often used to make financial investment products such as gold bars and coins, as well as high-end jewelry such as jewelry and watches. Compared with other alloys, AU900 pure gold is more precious and pure, so its price is relatively high. For those who like to collect gold bars, coins or jewelry, AU900 gold is undoubtedly a very valuable investment choice.

Although the purity of AU900 pure gold is high, it also needs maintenance. Some common maintenance methods include avoiding contact with chemicals, preventing metal from rubbing against other objects, cleaning and polishing regularly, etc. If you buy AU900 gold jewelry or ornaments, you must pay attention to maintenance and preservation, so as to ensure its long-term beauty and value.