W1C/W2C

With foot lifter function

External cable & cam (more easy to thread & maintain)

1. W1C interlock sewing machine, more effective than general interlock sewing machine for 30%~40%

2. Sawing a lot of threads

3. 3-5 mm short threads, reduce labor intensity

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