7725| 15
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請(qǐng)教密封圈 |
評(píng)分
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點(diǎn)評(píng)
預(yù)壓縮量確實(shí)稍大了點(diǎn)
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點(diǎn)評(píng)
公斤轉(zhuǎn)換成壓強(qiáng)是不是還應(yīng)該考慮一個(gè)面積A?
15-30公斤是1.5-3MPa
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