World's longest continuous sewing of multiple fabrics without stopping

On December 11, 2023, in a sewing competition held by Jack Technology Co., Ltd. in Hefei, China, the Jack A.M.H (Model: A5E-A) sewing machine has sewn 4 kinds of fabrics without thread skipping or thread breaking for a total of 317.8 meters. After audited and certified by Forbes World Records Certification, this machine has successfully set the world record for "the longest continuous sewing of multiple fabrics without stopping."