... Auto Plastic Zipper Top Stop, Pin & Box Injection Molding Machine Function: produce top stop, pin & box for nylon and plastic ... Weight 500kgAbout us: We area factory manufacturing zipper machines for making nylon, plastic, metal & invisible zippers, zippers ... we can offer: nylon zipper machines, plastic zipper machines, metal zipper machines, invisible zipper machines, zip machine, zipper machine, ...