Back gull bent like an iron bar slowly. The house.
像一根铁棒一样弯曲着，缓慢地飞行。
2
P The minimum diameter to which a bar is bent shall be such as to avoid bending cracks in the bar, and to avoid failure of the concrete inside the bend of the bar.
弯曲钢筋的最小直径处应避免弯曲裂缝，并避免在弯曲位置的钢筋混凝土破坏。
3
In order to avoid damage to the reinforcement the diameter to which the bar is bent (Mandrel diameter) should not be less than.