ork design with multi functions6.Speed modulating system with double motorCharacteristics:1.More faster and cost effective than traditional sewing machine and adhesive ways2.Eliminates fraying or unraveling of bonded edges and seams3.Easy to do curve sealing on fabrics4.Requires minimum training and maintenance5.Super strong ultrasonic power meets the needs of different fabric thicknessProducts Application:Non woven bags,woven bags,surgical disposable,rice bags,carbon bags