Unverified78% confidenceDecision RuleTime unknown
空心管材毛巾杆易变形，选壁厚≥1.0mm的实心或加厚管材，掂重量明显偏轻的多为薄壁劣质件；铜件重量普遍比同规格不锈钢重20%以上，可作辨别参考
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78%
Confidence
Long-term
Relevance
-
First Seen
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