This machine can realize hem seam, inverted seam, roll collar and stand seam. lt is suitable for all kinds of sportswear, swimsuit rhythmic clothing, all kinds of casual wear, pants, jackets, etc.Ideal for the processing of calibre barrel products. lt integrates "no oil pollution" mechanism,crank connecting rod needle bar mechanism, differential gear feeding, and drive transmission system. Regardless of the thickness of the fabric, it can obtain a flat, clean and perfect sewing effect,low noise,and minimize vibration. Durable.