SUNZITEK | Thread Overlock Sewing Machine (Made in China) | SZ-737Model SZ 737 Needle DCX27#11 Needle no 1 Thread no 3 Presser foot height 5. 5 Overedging width 4 Stitch length 0. 5 3. 8 Looper no 2 Differential ratio 0 7 2 Sewing Speed 6500 Packing size 470*350*480 Weight 33. 5 32 This series machine suitable for thin,medium fabric over edging,due to automatic lubrication device,it is running smoothly and low sewing machine tention,it has perfect stable stitch even during high speed sewing. High speed three thread
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