GT-581/582/583 series post bed compound feeding with driving roller shoes machine

1.No difference during high&low sewing and straight&inner curved lines sewing;
2.Through simple programming,can sew pattern stitches;
3.Standard stitch gauge for double needle:2.4mm;
4.Optional:1.6,1.8,2mm,specify when ordering
5.European design,GT-583 for children shoes sewing;