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TC骨架油封NBR28x35x37x
NBR丁晴TC骨架油封密封圈20x28x30x32x35x37x38x40x42x5x6x7x8x10
NBR丁晴胶O型圈外径28x29x30x31x32x33x34x35x36x37x38x39x40x5
TC骨架油封NBR 28x35x37x38x40x42x43x44x45x47x48x7x8x10x12x5