Unverified75% confidenceDecision RuleTime unknown
手动泵密封圈(活塞头橡胶圈)是核心易损件,硅胶材质比普通橡胶耐老化、抗低温开裂,寒冷地区或长期使用应选硅胶密封件
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75%
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Long-term
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