Unverified70% confidenceFactTime unknown
常见弹性螺旋牵引绳收缩状态约30cm、拉伸后可达2-2.5米,材质多为TPU弹簧包裹尼龙;书包式防走失带的织带承重普遍标称在15-20kg左右
1
Sources
70%
Confidence
Medium-term (~90 days)
Relevance
-
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