External cable&cam

(More easy to thread & maintain)

One key navigation,easily operate Voice tonavigation easy & quick tooperate

1.P1C interlock sewing machine, more effectivethan general interlock sewing machine for30%~40%

2.saving alot of threads

3.3-5mm short threads,reducelabor?intensity

Super large space, strong and heavy(huge operation space, add the shell'sweight , more stable, less vibration）