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無(wú)內(nèi)圈軸承的軸,軸頸表面硬度要求及軸零件材料如何選擇 |
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點(diǎn)評(píng) | ||
點(diǎn)評(píng)
你說的確信是鍍鉻硬軸?我現(xiàn)在長(zhǎng)期出差的地方,不知從哪兒拉來(lái)的貨,質(zhì)量很差,可也不至于起皮。。。
鍍鉻層會(huì)起皮
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