油封骨架tCR38x55x8HMS5VHMSA
油封公制骨架tCR38X55X8CRW1R
油封骨架38x55x1038x55x12
氟胶耐温油封骨架
油封公制骨架HMSA
油封骨架tCR10
滚针轴承K50X55X30AK52X57X12K60X68X25
密封圈油封水钻32x45x10
钻机油封43x55x1138x55x12
密封圈油封38x52x1238x54x10
钻机油封40x54x1038x52x12