微分头0803-0100903-010货号测量范围精度分辨率 尺寸图棘轮测力0803-0100-25mm0.003mm0.01mm 0803-3100-25mm0.003mm0.01mm 0903-0100-25mm0.003mm0.01mm 0903-3100-25mm0.003mm0.01mm 无声测力0803-0200-25mm0.003mm0.01mm 0803-3200-25mm0.003mm0.01mm 0903-0200-25mm0.003mm0.01mm 0903-3200-25mm0.003mm0.01mm 棘轮套测力0803-0300-25mm0.003mm0.01mm 0803-3300-25mm0.003mm0.01mm 0903-0300-25mm0.003mm0.01mm 0903-3300-25mm0.003mm0.01mm 货号