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lead gasketlead insertlead washer 铅垫片
·2,447,543篇论文数据，部分数据来源于NoteExpress
A typical metallic washer is made from lead or softened copper.
典型的金属垫圈用铅或软铜制作。
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Sorrily the accused know you feel our washer offer high to lead market price.
遗憾地被告知你们感到我们洗衣机报价高过市价。
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