Unverified80% confidenceCautionTime unknown
接头有较大膨大或异形连接器时不要用2:1低收缩比管，收缩量不足会卡在膨大处无法完全套过或密封不严，应选3:1及以上
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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