Unverified80% confidenceDecision RuleTime unknown
注水式热水袋注水口螺纹密封圈是漏水关键,选购带双层防漏塞或旋盖+橡胶垫圈设计的,避免仅靠塑料塞插入的老式款;使用满3年橡胶老化应更换
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