Thousands of gold with a gold content of not less than 999 is called thousands of gold, which is the highest value in jewelry color naming. The stamps are thousands of gold, 999 gold, 999 gold or g999 gold. The imprint of gold jewelry includes manufacturer's code, material and purity, such as X Gold 990, XAu990 and X Pure Gold.
The selection of thousands of gold jewelry with good color needs to start from three aspects: light, sound and ductility: unique glare: thousands of gold has a unique golden luster, and pure gold will shine brightly under strong light, which other metals, including copper, do not have. Listen to the sound and know the gold: thousands of gold is of high quality, and it is disorganized and elastic when thrown on the ground. Good ductility: Pure gold has the characteristics of good ductility and low hardness. Pure gold is soft when folded. Mark it with a pin. The strength is not strong and the marks are obvious.
How to maintain your thousands of gold ornaments? Take off the gold jewelry before strong activities to avoid wear and tear; Gold ornaments should be kept away from chlorine solution, otherwise chlorine solution will weaken the internal structure of gold and eventually lead to fracture; Regularly remove dirt from gold ornaments to ensure luster; When not in use, wrap it with soft cloth and gently put it into the jewelry box.