Unverified85% confidenceDecision RuleTime unknown
选购PVC穿线管认准中型(3.0mm壁厚以上,标识3.0/中型)用于暗埋,轻型(薄壁)只适合明装线槽内,暗埋用轻型管抗压不足易开裂
1
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85%
Confidence
Long-term
Relevance
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