234MA-50美国施泰力外径千分尺校正杆234M系列外径千分尺校正杆产品编号长度产品编号长度特点234MA-2525mm234A-11〞 用于对外径千分尺进行零点设置 平面研磨的测量面 隔热手柄防止体温的传递234MA-5050mm234A-22〞234MA-7575mm234A-33〞234MA-100100mm234A-44〞234MA-125125mm234A-55〞234MA-150150mm234A-66〞234MA-175175mm234A-77〞234MA-200200mm234A-88〞234MA-225225mm234A-99〞234MA-250250mm234A-1010〞234MA-275275mm234A-1111〞234MA-300300mm234A-1212〞