... device, the machine operates perfectly and smoothly at low sewing tension, and perfect and stable stitches even at high speed ... 3-lines, 4-lines and 5-lines kind; Model Number KLY737 KLY747 KLY757 Max. Sewing Speed 6000spm 6000spm 5500spm ... AND SHUTTLE HOOK,BOBBIN CASE AND CAP, BOBBINS,NEEDLE PLATE,SEWING MACHINE, NP-7A GK26-1 ,HOUSEHOLD SEWING MCHINERY PARTS,SEWING MACHINERY SPARE PARTS,SCISSORS and ...