.微分头/三丰微分头/刻度微分头/数显微分头三丰微分头148-201,148-205,148-209,148-215;三丰微分头148-301,148-303,148-305,148-307;三丰微分头149-132,149-183,149-801,149-821;三丰微分头150-190,150-191,150-209,150-801;三丰微分头153-101,153-203,153-204;数显微分头164-161,164-162,164-171;微分头参数说明:a.货号148-201;测量范围0-6.5mm,分辨率:0.01mm,精度正负5*,心轴面:平面型;b.货号148-205;测量范围0-6.5mm,分辨率:0.01mm,精度正负5*,心轴面:球面型;c.货号150-191,带有锁紧螺母;测量范围0-25mm,分辨率:0.01mm,精度正负2 ,心轴面:平面;