KUIKE MOST UPDATE BOTTOM HEMMER - NEW ADDINGL FUNCTIONS OF 9.0 SYSTEM INTRODUCTIONThis device can ensure the same seam directions (inside and outside )are well aligned and assist and ensure the stability of overflipping real seam direction, avoid error detecting on fabric colour,improve the speed and stability, the knife can be changed easily and fast, realize the expension and identification the size automatically,achieve a real seam direction overflipping, it adopts two rectifying belts in each group to enchance the stability of the rectifying deviation effects.