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耐老化,耐酸碱FPM/FKM/VITON氟橡胶O型 …

耐老化,耐酸碱FPM/FKM/VITON氟橡胶O型圈滕斯华是专业生产各种型号耐高温氟橡胶O型圈,FPM/FKM/VITON橡胶O型圈,EPDM防水圈,三元

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