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2017-06-12 13:46:16 Classification： - The patent certificate about Double-wall tank (5)Clicks：2746
2017-06-12 13:45:38 Classification： - The patent certificate about Double-wall tank (4)Clicks：2724
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2017-06-12 13:43:04 Classification： - The patent certificate about Double-wall tank (1)Clicks：2851
2017-06-12 13:41:01 Classification： - High - tech enterprise certificateClicks：2694
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