Chitosan Powder,Chitosan Oligosaccharide,Chitosan Oligosaccharide Agricultural,Shrimp Chitosan Powder JIANG SU CYCLE BIOSCIENCE CO.,LTD , https://www.cyclebiostimulants.com
Both serve the purpose of sewing shirts, uniform, jeans, overcoats etc. They adapt the wide range of sewing materials and synchronized feeding of needle and feed dog, which can prevent slippage between layers of materials.
They can perform two-row of parallel stitching and decorative seaming with quality.
The JUK842 is with small hook, JUK872 is with big hook, both are with bottom  & needle feed.