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水钻机水封油封密封圈胶封30*42
UKS氟胶骨架油封38x40x48x50
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氟胶TC骨架油封40x50x52x55x56x58x60x62x5x6x7x8x10x12耐高温
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NBR骨架油封密封圈TC25x35
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