What about your outside packing?
你的外包装用什么呢？
Also, they must be marked on outside packing.
同时必须清楚列明在外箱包装。
The association packing of the double sealed ring, has prevented outside from letting out.
双重密封环的组合填料，避免了外泄漏。
The association packing of the double sealed ring, has prevented outside from letting out.
双重密封环的组合填料，避免了外泄漏。
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