Unverified78% confidenceTradeoffTime unknown
可升降伸缩款的连接节点是最大薄弱点，伸缩管在承重后长期使用易滑落下沉，追求长期稳定和大承重应选固定高度焊接一体款
1
Sources
78%
Confidence
Long-term
Relevance
-
First Seen
Sources
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