3893| 9
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作滑動(dòng)配合用材料45號(hào)鋼應(yīng)如作何種熱處理 |
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點(diǎn)評(píng)
對(duì)頭,,滲碳淬火或者碳氮共滲,。
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點(diǎn)評(píng)
那個(gè)不值錢那個(gè)軟,,那個(gè)值錢那個(gè)硬
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點(diǎn)評(píng)
滑座用青銅的好些,,不要很高硬度,,你的滑座移動(dòng)頻率高嗎?高的話52壽命不會(huì)很長吧
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