AS0303DDI-4 Direct drive computerized single needle bottom feed walking foot heavy duty lockstitch sewing machine

Large hook big bobbin case , for medium heavy mateial
Suitable for sewing leather products, sofa,suits-case, bags, canvas, seat-cushions, etc.
It has link-driven feed mechanism with fine durability and smooth feed. 

It has upper/lower comprehensive feeding mechanism with good climbing properties. 

It can effectively avoid shif and attain the consistent upper/lower levels. 

It can conveniently adjust back / forward stitch size. 

It ensuere allowable error of back/ forward stitch size and brings about the more consistent and attractive stitches.