ocular micrometer,

mitutoyo digit outside micrometer
千分尺 螺旋测微器又称千分尺(micrometer
p>内径千分尺(inside micrometer),机械用具,用于内尺寸 a target="
100 mm digital vernier caliper micrometer guage electronic
digital micrometer 0.1 mm caliper practical 150 mm plastic e