... document bags, 3. tags, documents binding, card rivet AJYD4/5.5-2 auto double head eyelet machinebinding thickness: less than 4mmeyelet dia ... bags, paper case, document bags, tags, documents binding, card rivet and other more purposes.Features: Precise coordination and easy operation ... , the machine could be work for the official documents rivet and binding. Non-stop process from eyeleting feeding,hole ...