Sewing machines have developed from the traditional old-fashioned sewing machines to today's various sewing machines. The following is my introduction to the various types of sewing machines.
Sewing machines are divided into three categories: special-purpose sewing machines, general-purpose sewing machines and decorative sewing machines.
1. General-purpose sewing machines include industrial lockstitch sewing machines (ordinary lockstitch, medium and high-speed lockstitch, high-speed lockstitch, semi-automatic lockstitch, fully automatic lockstitch), household sewing machines, service industry sewing machines, overlock sewing machines (second-thread overlock, three-thread overlock) sewing, four-thread overlock), chain sewing machine, interlock sewing machine.