17 . rotary pincers the fifth pincers can rotate inward when the wipers move in and last the shoes patent no86206459 the rotary angle can be adjusted which will help the upper at ball point more stretched and attached to the last by the aid of supplemental wipers . the shoes will be lasted and finished perfectly 旋转角度并可调整，使前中帮衔接转角处之鞋面能向内拉紧更贴楦，再配合辅助扫刀做结帮动作，使鞋头的结帮品质达到完美的境界。
