Two end use spring link up with joins correctional shoe front and bracket, bedspring makes below natural state correctional shoe and bracket are in same inside plane as perpendicular as the ground.
英
美
- 弹簧两端用挂钩将矫正鞋前端与支架相连接 ,弹簧在自然状态下使矫正鞋与支架在同一个平面内并与地面垂直。