Unverified83% confidenceDecision RuleTime unknown
不锈钢管选购看壁厚与直径：管径≥25mm且壁厚≥0.8mm才不易在满载时弯曲变形，标称304不锈钢但壁厚仅0.5mm的产品晾满衣服后横杆会下垂
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83%
Confidence
Long-term
Relevance
-
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Unverified所谓'304不锈钢'晾杆需看管壁厚度，管壁≥0.7mm才不易晾满衣物后弯曲，廉价产品常用0.4mm薄壁管冒充91% similarUnverified管材直径和壁厚是承重的核心，直径≥22mm、壁厚≥0.6mm的不锈钢管抗弯能力明显更强；细管产品放重物会中间下沉变形90% similarUnverified钢管管径与壁厚决定承重：直径≥25mm、壁厚≥0.8mm的碳钢管单层可稳定承重15-20kg；壁厚＜0.6mm的薄壁管长期承重易弯曲，选购时可要求商家标注管径和壁厚88% similarUnverified免组装床架的钢管管径直接决定承重上限，主承重横梁管径≥25mm且壁厚≥1.0mm可稳定支撑200kg以内，管径＜22mm或壁厚＜0.8mm易出现中间塌陷和异响87% similarUnverified框架管径直接决定承重：钢管方管≥1.2mm壁厚、25mm以上截面才适合重载；壁厚＜0.8mm的薄壁管长期放重物易变形弯曲87% similar
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