Unverified75% confidenceDecision RuleTime unknown
手动泵缸筒材质选ABS+金属活塞杆，纯塑料活塞杆连接处反复受力易断裂，是手动泵最常见的损坏点，使用寿命通常在1-2个换季周期
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75%
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Long-term
Relevance
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