卡尺專用量塊被測卡尺.....................塊數(shù)......................................具體尺寸0-125/150mm............6塊....................41.2/81.5/121.8/10/20/200-200mm....................6塊.....................51.2/121.5/191.8/10/20/200-300mm....................3塊.....................101.2/201.5/291.8300mm........................12......................10/20/20/41.2/51.2/81.5/101.2 300mm........................12......................1/121.5/191.8/201.5/291.8 一、材料： 1）鋼 2）陶瓷二、等級 1）0級 2）1級 3）2級