两端均为环形连接件的连接金具。
使用时只要提起挂环，即成立体形状。
When used, the suspension loop is just to be lifted to become a solid shape immediately.
除正面和侧面的挂点外，背部还有一个挂环。
In addition to the front eyelet and the eyelets on the sides, it features a restraint loop on the backside.
本发明涉及一种挂环同心锁，属于同心锁具结构技术领域。
The invention relates to a hanging ring concentric lock, belonging to the field of concentric lock structure technique.
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