Unverified75% confidenceTradeoffTime unknown
属于纯背带（无腰凳）结构，与腰凳背带相比长时间背负的承重分散不如腰凳款，介意腰部负担的可考虑腰凳类产品
1
Sources
75%
Confidence
Long-term
Relevance
-
First Seen
Sources
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