KCB造句
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。...
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。...