How about the middle of the bending machine?
There is no deflection compensation caused by the truth with the mold about each pair of good, resulting in displacement.
It may be due to the knife and the knife due to uneven, the mold offset the angle, so the same angle, straightness is not enough.
If the technical requirements beyond the marked by the middle of the curvature, then the professional term called out of the straightness of the parts can not meet the requirements.
Bending machine out of the middle of the plate is bent R angle, the general relationship with the thickness of the board.
