micrometer heads
tubular inside micrometers 接杆式内径千分尺 micrometer heads 微分头 IDF series digimatic indicators IDF系列数显千分表/百分表 ..
differential head
differential head » 微分头 ..
Micrmeter head
... 内径千分尺 Inside micrometer 微分头 Micrmeter head 百分表及内径量表 indicator ...