Unverified78% confidenceFactTime unknown
折叠款隧道的弹簧钢圈易老化变形,选购时优先看钢圈是否有布套包裹(防金属外露)以及压扁复原后是否能保持圆度,无布套包裹的裸圈款半年内易生锈
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
Sources
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