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用“KCB”造句大全，KCB造句

用“KCB”造句大全，KCB造句

2018-11-22
KCBgearpumparemainlygear,shaft,pumpbody,valve,shaftendseal.KCB-300~960typepumpadoptsmechanicaldevice,bearingthesinglecuttotheheartballbearings.KCB-300~960型泵采用机械密约装置，轴承采用单列向心球轴承。...