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氟胶O型圈74x75x76x77x78x79x80x81x82x83x84x85x4mm耐高温密封圈
氟胶O型圈外径76x77x78x79x80
NBR丁晴胶O型圈外径69x70x71x72x73x74x75x76x77x78x79x80x81x3.1
氟胶O型圈75x76x77x78x79x80x81x82x83x84x85x86x5mm耐高温密封圈
NBR丁晴胶O型圈外径71x72x73x74x75/76x77x78x79x80x81x82x83x3.5
NBR丁晴胶O型圈外径71x72x73x74x75x76x77x78x79x80x81x82x83x2.4