This year, various types of goods, such as the "dog" model of the Chinese zodiac, have been unveiled. Many merchants are expected to usher in a sales peak before the Spring Festival. So how do you choose gold jewelry? First, look at the logo on the jewelry Our country has clear regulations on the logos and hangtags on the gold ornaments. Generally, there must be the code name, material name, content mark, etc. of the production enterprise. None of these are unqualified products! The salesperson doesn't want to buy it. When buying gold ornaments, everyone should be most concerned about its "color", which is the content of gold in the gold ornaments (gold content). 1, see the score identification That is, the gold content in gold jewelry is expressed as a percentage and a thousandth. For example, if G990 or Au990 is marked, it means that the gold content of this goldsmith is 99%; if G586 or Au586 is marked, it means that its gold content is 58.6%. The former has a higher gold content, better color, and certainly more expensive. When you buy, you can see the logo. 2, look at the text logo In addition to the score mark, some gold products will have a text mark, which is simpler and clearer. There are only 2 words - full gold (gold with a gold content of not less than 99.0%). In addition, there are also marks such as “Thousands of Gold, Full Goldâ€, which refer to gold ornaments with a gold content of not less than 99.9% or 99.99%. However, our country has cancelled the naming of thousands of gold and 10,000 gold, and these two logos will no longer appear on the gold ornaments. Second, the hand is gold and heavy + listening to the rhyme The density of gold is 19.32g/cm3, which is more than twice the density of copper. The gold in hand has the feeling of falling hands and the handcuffs are heavy but not heavy. The purity of pure gold and pure gold jewellery is very high, it is very stable, the sound of jewelry falling or colliding with each other will be low and boring, it is the sound of “bar å—’â€, and it will not move when it falls; it has poor color, low purity and even fake gold. When landing or bumping each other, it will make a "dangdang" metal sound, sometimes it will beat the sound, and it will beat after landing. But don't rub it hard and be careful. Third, observe the color and workmanship Look at the color and luster, red and yellow is the best, but also pay attention to observe the appearance of the product color, the color of the bad color is dark and cyan. Some decorations are too dim in color like the paint color that is sprayed out. Be sure to touch it with your hand to see if the seal is good, if there is no weld, if there is no break, if it is rough, or if the button is easy to fall, check it. At the same time, pure gold jewelry is easy to deform, and it must be seen whether the overall shape is deformed or not. The texture of the surface of the gold jewelry can not be ignored. It is necessary to choose jewelry with clear surface, good brightness and even texture. At the time of purchase, you should also pay attention to whether the edges of the jewelry are smooth, and the good jewelry work is very fine. 4. Clearly wrap gold, gold plating, gold, gold, forging 1, wrapped gold jewelry The composition of metal in any part of pure gold jewelry is the same, while the gold jewelry in the package is two or more kinds of metal attached or forged together, wrapped in each other, different in different parts of the metal, the surface is gold And the interior is copper and silver. 2, gold-plated jewelry It is a layer of ultra-thin and ultra-thin gold plated on the surface of silver or copper jewelry, and then such jewelry is called "gold-plated jewelry." Our country stipulates that the gold-plated layer should not be less than 0.5 micron (1 micron = 0.001 mm). This gold-plated jewellery is bright and soft, but not durable. It is as easy to wear as a gold-plated watchband, which will reveal the bare tire of the brass. Yellow. This kind of gold-plated jewellery is easier to identify. Look carefully at the joints of the jewellery or the corners of the corners. There will be no gold plating. In addition, its density is small, the hand hoe is light, no falling hand, falling on the ground. There is a crisp "being" sound, and the elasticity is good. The mark of the gold-plated jewelry is "GP" or "KP". 3, gold jewelry Bao Jin is also known as gold in the United States. Gold-plated jewellery is a layer of gold foil on a copper or silver plate. The thickness of the gold foil is between 10 and 50 m. Since the thickness of the gold-plated jewellery is thicker than gold plating, the appearance is similar to that of gold jewelry. This kind of gold-plated jewelry has the mark of KF in the United States. If the gold foil is ISK gold, it will be marked with 18KF on the inside of the jewelry. Gold jewelry is generally not expensive 4, forging gold Forging gold is similar to gold, which is forging gold foil on the surface of other metal products. The gold content of the gold foil should not be less than 10K, and the weight should not be less than 5% of the total weight of the jewelry. It is marked as "GF" or "KGF". Forging gold wear-resistant, high hardness, and gold texture, so it is quite popular. 5. Choose a large-scale, quality-guaranteed gold store to buy Choose large-scale shopping malls or brand-name stores with large scale, good reputation and quality assurance, and try not to buy them in personal hands or in tourist areas. Phosphor Copper Mesh,Mesh Copper,Phosphor Bronze Coil,Phosphor Bronze Coils YingKaiMo Metal Net Co.,Ltd. , https://www.ykmmetalnet.com
August 30, 2023