With single straight needle link take-up and rotating hook to form lockstitch. It is available to sew light to medium heavy weight material, such as knit cotton and synthetic fabric. SR 6-9high speed heavy duty luggage sewing machine features big rotary hook and self-use hock and self tem to reduce bobbin changing and prolong the life of the hook and other easily damaged parts. Quantity Per Month: 200~1000 sets HS Code: 8452290000 Delivery Way - Date Of Delivery: within 1 month