tape edge machine bc309 this machine is mainly used for tape-edging of mattress panel, sleeping bag and tent. 1.adopt advanced chainstitch sewing head. 2.auto-lifting table, hand-controlled tilting of sewing head. 3.various speed for moving of carriage and sewing, auto-slowdown at corners. 4.straight, even and trim seam. 5.stainless steel table top. 6.equipped with level-adjusting device. 7.low noise, small vibration, stable performance.