公制型测量范围货号分辨率精度0-25mm293-230/293-240*0.001mm±1um25-50mm293-231/293-241*0.001mm±1um50-75mm293-232/293-242*0.001mm±1um75-100mm293-233/293-243*0.001mm±2um100-125mm293-2500.001mm±2um125-150mm293-2510.001mm±2um150-175mm293-2520.001mm±3um175-200mm293-2530.001mm±3um200-225mm293-2540.001mm±3um225-250mm293-2550.001mm±4um250-275mm293-2560.001mm±4um275-300mm