Inside Micrometer 内测千分尺75-100mm

刀口形壁厚千分尺 Tube Micrometer ( Type B )

圆柱形壁厚千分尺 Tube Micrometer ( Type D )

接管内径千分尺 Internal Micrometer

单杆内径千分尺 Inside Micrometer

大规格三爪内径千分尺 Three Point Internal Micrometer