Yao Han Bag / Sack Closing N320A Single Needle Two Thread Chain Stitch For an extra strength stitch in closing sacks.. Part No: N320A High quality, double thread, sewing bag suitable for a variety of needs including: polypropylene, paper, canvas, linen, jute, polyethylene, sisal etc. Oil pump lubrication feature which allows for the oil line to have a direct lubricant to main moving parts. Staples with reinforced, dense double-chain stitch with an automatic knife.
