high-speed feed-off-arm sewing machine
Detailed Product Description
sewing machine
1.suitable for medium & heavy-materials with special feed-off-arm,
2.both needle thread tension and bobbin thread tension have been decreased after reinvestigation of the double-chainstitching mechanism,
3. forming beautifully finished seams and preventing puckering, the machine prevents stitch skipping when it runs at high speed, there by producing higher-grade products.