2721| 7
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關(guān)于氣密性材料 |
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點(diǎn)評(píng)
用密封圈,密封膠長(zhǎng)時(shí)間不穩(wěn)定. 兩者測(cè)試都可以過(guò)IP67, 關(guān)鍵時(shí)效性.
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