Unverified82% confidenceDecision RuleTime unknown
金属管壁厚是稳固性关键，扶手主管壁厚应≥1.5mm、管径≥28mm，壁厚不足1.2mm的薄管在长期借力下会晃动变形
1
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82%
Confidence
Long-term
Relevance
-
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