GN20-1 Bag Sewing Machine / Bag Stitching Machine: Single Needle, Plain Feed, Flat Bed, Double Threads Overseaming Sewing Machine for overseaming light weight to heavy weight jute or PP/PE woven cloth bags. Extra heavy duty machine for overedging very thick material. The wide overseam width 15mm increases seam strength. Overseam width 10mm is available by replacing some parts.