double ro double-direction thrust bearing
...thrust ball bearing with sleeve 装在安装套上的双向推力球轴承 double ro double-direction thrust bearing 双列双向推力轴承 double-direction thrust bearing with flat seats 带平面座双向推力轴承 ..
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double ro double-direction thrust bearing
双反向双向推力轴承
以上为机器翻译结果，长、整句建议使用 人工翻译 。