Pairs such as rings and slotted rings, the origin of this phase is the jade, which is convincing and representative of some class, jade, decorated jade culture, or from the origin.

• 成对的像环、玦，这样的才是玉器起源阶段，这也是有说服力的和有代表性的一些器类，玉文化还是从装饰玉器起源的。