内套筒 meaning in English

inner sleeve

Tee wrenches , male square
内套筒四方t形扳手
Cranes ; bottom blocks ; type a rope pulleys with cylindrical rolling bearing and internal sleeve
起重机.下滑车.带圆柱形滚动轴承和内套筒的a型绳索轮
Cranes ; bottom blocks ; sealing covers for type b rope pulleys with deep groove ball bearing and internal sleeve
起重机.下滑车.带深滚道滚珠轴承和内套筒的b型绳索轮
Cranes ; bottom blocks ; sealing covers for type a rope pulleys with cylindrical rolling bearing and internal sleeve
起重机.下滑车.带圆柱形滚动轴承和内套筒的a型绳索轮
Cranes ; bottom blocks ; internal sleeves and spacer sleeves for type b rope pulleys with deep groove ball bearing and internal sleeve
起重机.下滑车.带深滚道滚珠轴承和内套筒的b型绳索轮

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