品牌三丰MITUTOYO型号510-121类型指示外径千分尺测量范围0-25（mm）分辨率0.001（μm）适用范围分辨力高于或等于0.01mm,量程小于或等于100mm,测量范围上限至500mm的薄片千分尺指示外径千分尺编号规格510-1210-25mm分度值0.001mm510-12225-50mm510-12350-75mm510-12475-100mm指示外径千分尺编号规格523-1210-25mm分度值0.001mm523-12225-50mm523-12350-75mm523-12475-100mm)