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X星型圈263.33/266.07/278.77/285.77/291.47/297/304.17*6.99
高端星型圈278.77/285.77/291.47/297.8/304.17/316.87*6.99X型圈
星型密封圈/X型圈丁腈NBR氟胶266.07/271/278.77/285.77*6.99
