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氟胶O型圈70x72x75x77x78x80x82x85x90x95x98x2.5mm耐高温密封圈
氟胶O型圈70x72x75x77x78x
氟胶O型圈外径65x66x67x68x69x70
UKS进口骨架油封密封圈
NBR丁晴胶O型圈外径67x68x
NBR丁晴胶O型圈外径67x68x69x70x71x72x73x74x75x76x77x78x79x5
NBR丁晴胶O型圈外径69x70x71x72x73x74x75x76x77x78x79x80x81x3.1