Pd is a new precious metal, namely palladium gold. The following "950" indicates that the content of palladium in this metal is 95%, just as Pt950 indicates that the platinum contained in it is 95%. Although the density and luster of palladium are not as strong as platinum, its chemical stability is the highest among all precious metals! Moreover, the hardness of palladium is not lower than that of platinum: platinum is 4.5, palladium is 4 (both gold and silver are 2.5) and the price is low (about 90 yuan per gram, while platinum is about 235 yuan to 265 yuan per gram.

YDL should be the brand name of the ring or the code name of the manufacturer.

17 is the inner diameter of the ring.