Метка архива: "B goods" и "С товары" из жадеита?

what does au750 mean on jewelry What are the "A goods", "B goods" и "С товары" из жадеита?

Jadeite is one of the protagonists in the Chinese jewelry and jade market. It is directly carved into shapes or inlaid into jewelry for sale. На рынке, we often hear "A goods", "B goods", "С товары", или "A grade" Джейд, "B grade" Джейд, "C grade" jade and so on. Фактически, this is not [...]