Summary: The machine with 16 heads can produce single centre cord metal zipper and plastic zipper. Conbination of machine with 8 heads and machine of 16 heads can produce doulbe twist centre core of plastic and metal zipper.
Automatic zipper centre cord making machine with 8 heads can produce the single/double twist center cord of nylon zipper (with the addition double twist frame.) And this machine price has included this twist frame price already.
This machine is also named chemical polishing machine which is mainly used to plate gold color and pre-process for shiny nickel, light gold and shiny gun color of metal zipper.
Combining the gapping and bottom stop melding function together, this machine helps to save the machine floor space, one technician can operate several machines.