face-to-face duplex bearing || 成对双联轴承,正面组合复式轴承 face-to-face duplex tapered roller bearing || 成对双联圆锥滚子轴承 .
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face-to-face duplex ball bearing 成对双联推力球轴承 ; 成对双联向心推力球轴承
face-to-face duplex tapered roller bearing 成对双联圆锥滚子轴承
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