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    產品中心 PRODUCT CENTER

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    產品特點:井座與井蓋之間設有專用開啟口

    使用范圍:適用于城市主要道路和大型貨車通行較多的路段

    該產品使用公司以下實用新型專利進行生產:

    一種抗壓圓形井蓋的鋼骨架(專利號:201420732156.4); 

    一種抗壓檢查井蓋(專利號:201420732311.2)


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