进口氟胶O圈内径324.3/329.3/333.8*3.1耐高温O型圈Viton密封圈

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O型圈NBR内径313.8/314.3/319.3/323.8/324.3/329.3/333.8*3.1

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丁晴O型圈内径*线径333.8/334.3/314.3*3.1耐磨耐油密封圈

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进口VITON/FKM氟胶国标O型圈内径318.8/323.8/328.8/333.8*3.1

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