Conclude that caused the rupture caused by tightening the screw too tight and strong. Allow the pressure point, which is the most delicate point. Observed from the point of overlap of the factor
Concluded that the reason for the split was caused by tightening the screws too tight, tension and pressure, which makes the point that there is a weak point. Observation from the overlap of the component
Concluded that the cause of the cracks caused by the screw and tension too tight. The pressure, which points to a weak points as much as possible. Observing from the point of overlap factor