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哪位大俠知道這種密封? |
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點(diǎn)評(píng)
是啊,就是沒密封圈,有時(shí)候沒密封圈可以使用在更惡劣的環(huán)境下,并長(zhǎng)久有效。
就沒有加密封件的位置在嘛,就是錐面密封怎么加啊??
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