斯特林银主要以铜作为合金化元素，容易氧化形成夹杂。

Also, sterling silver is alloyed with copper which is easy to be oxidized and to cause oxide inclusion.

youdao

斯特林银主要以铜作为合金化元素，容易氧化形成夹杂。

Also, sterling silver is alloyed with copper which is easy to be oxidized and to cause oxide inclusion.

youdao