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密封凸缘
meaning in English
packing flange
Related Words
凸
凸凸
密封
凸缘密封
凸缘
凸凸缘螺母
凸缘密封垫
凸缘真空密封
密封头盔
密封头盔观察窗
密封涂层光纤
密封涂覆光纤
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