1.Display mode: computer screen
2.Impact energy: 150/300J, 250/500J
3.Distance from pendulum shaft center
 to impact point: 750mm, 800mm
4.The impact speed: 5.2m/s, 5.4ms/s
5.The pendulum angle of pre yang:150В°
6.Sample support distance: 40+0.2mm
7.Jaw rounded angle : R1-1.5mm