GP is the abbreviation of English Gold Plate, 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.
Extended data:
18KGP jewelry is easy to fade after long-term use, and the general service life is less than 1 year. Those who are allergic to non-silver jewelry are not suitable for wearing. 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. The gold layer thickness of 18KGP jewelry is about 1mi (mic is the unit of gold layer thickness stipulated by international standards), and the gold plating layer is about 3mi.
Baidu encyclopedia-18KGP