18KGP is the symbol of alloy imitation jewelry. Generally speaking, alloy or white copper is plated with platinum, which contains no silver and is easy to fade after long-term use. The general service life is within 1 year, so it is not suitable for wearing non-silver jewelry! 18KGP metal is an alloy forged by special exercise method, which is different from ordinary alloy.

18KGP metal is not easy to oxidize, fade and wear, and it is not easy to cause sensitive skin sensitivity. If it is really sensitive skin, when wearing 18KGP, you can wear it for one day and then take it off the next day, so it is not easy to appear sensitive after repeated wearing. Generally speaking, 18KGP refers to gold-plated or gold-plated jewelry with a gold-plated layer of 18K gold.

They are composed of two symbols, 18K is the symbol, and k stands for gold content, that is, gold content. The relationship between k number and gold content is: Au wt% = K/24 × 100%, and the national standard GB 1 1887-89 stipulates that the gold content per k is 4.655.

GP is the abbreviation of English goldplain, commonly known as forging gold in business. This logo means that the product is mainly made of phosphorus and copper in general metals after high-temperature forging, and then plated with a layer of gold, which can be divided into two types according to the thickness of the gold layer. The thickness of gold-plated layer is about 1mi (mic is the unit of gold-plated layer thickness stipulated by international standards), and the gold-plated layer is about 3mi.