紧定套 meaning in Chinese

adaptive sleeve
tapered adapter-sleeve

Lock sleeve gb306 - 81 withdrawal sleeve jzt5916
紧定套gb306 - 81退卸套jzt5916
Rolling bearings . accessories . adapter sleeves
滚动轴承.附件.紧定套
Rolling bearings ; plummer block housings for rolling bearings of diameter series 3 with tapered bore and adapter sleeve
滚动轴承.直径系列3带锥形孔和紧定套的滚动轴承用带
Rolling bearings ; plummer block housings for rolling bearings of diameter series 2 with tapered bore and adapter sleeve
滚动轴承.直径系列2带锥形孔和紧定套的滚动轴承用带