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關(guān)于O型圈開槽,想和大家討論 |
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點(diǎn)評(píng)
@葫蘆OL--------正確。在中國現(xiàn)在的競爭環(huán)境下,壓縮成本才能有市場。
燕尾最大問題在加工成本上,
做成燕尾槽有一定防吹出作用
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