p125 gold what does it mean?

Golden l25 is the manufacturer’s code or code. According to the purity, there are three main types of pure gold: 990, 999, and 9999. In addition to 990, 999 refers to a thousand pure gold with a gold content of 99.9, and 9999 means a thousand pure gold with a gold content of 99.99. Pure gold covers a wide range. As long as the gold content is above 99%, it is collectively called pure gold. Therefore, pure gold has become the highest value in the national standard for naming jewelry fineness. Because of its high gold content, pure gold has a very soft texture and a color close to reddish yellow. It has good value-added and value-preserving properties and is suitable for investment.

P - means gold plating, p125 means a symbol of gold plating.