368系列三点式内经测微器组 三丰编号测定范围解析度368-9062-3mm0.001mm368-9073-6mm0.001mm368-901-106-12mm0.001mm368-91212-20mm0.001mm368-91320-50mm0.001mm368-91450-100mm0.001mm368-915100-200mm0.001mm 468系列数显三点式内经测微器 三丰编号测定范围解析度备注468-1316-8mm0.001mm测砧与平面差2mm468-1328-10mm468-13310-12mm468-134-1012-16mm0.001mm测砧与平面差3mm468-135-1016-20mm468-136-1020-25mm468-137-1025-30mm468-138-1030-40mm468-139-1040-50mm468-140-1050-63mm468-141-1062-75mm468-142-1075-88mm468-143-1088-100mm468-144-10100-125mm0.001mm测砧与平面差12.4mm468-145-10125-150mm468-146-10150-175mm468-147-10175-200mm468-148-10200-225mm468-149-10225-250mm468-150-10250-275mm468-151-10275-300mm