The invention relates to a hangingring concentric lock, belonging to the field of concentric lock structure technique.
本发明涉及一种挂环同心锁，属于同心锁具结构技术领域。
2
In addition, upper extreme of the pump body is permanently provided with a hangingring device; bottoms of the pump end shell cover and of the back cover are provided with adsorption devices.
另外在泵体上端固定有提手装置，且在泵端盖、后盖的底部设置有吸附装置。
3
One small example is "beeping" : hanging up after a single ring.