德國mahr自定心內徑測量槍844A量程(mm)分辨率(mm)精度um訂貨號6-80.0013 8-100.0013 10-12.50.0013 12.5-160.0013 16-200.0013 20-250.0013 25-300.0013 30-350.0013 35-400.0013 40-500.0013 50-600.0014 60-700.0014 70-850.0014 85-1000.0014 100-1250.0015 125-1500.0015 150-1750.0016 175-200mm 0.001 6