NTD New Old distinguishing method

1.

NTD New Old Distinguishing Method
The method for distinguishing the structure before and after NTD
optimization is to observe the position of the NTD entrance at the
red box

2.

NTD New Old Distinguishing Method
Optimize the upper
surface of the front
pillar to be
perpendicular to the
slope surface
After optimization,
the upper surface of
the column
coincides with the
slope surface