... type,25 ring diameter,2 rings mechanisms; metal ring mechanism; loose leaf mechanisms PR123-2-25/20123mm R type,25 ring ... ,2 rings;2 ring binders ;ring binder;metal ring mechanism;loose leaf mechanism;******* Why J. D. S ******** -- PRODUCTION CAPACITY The ... goods are stationery accessories like lever arch mechanisms, ring binders/loose leaf rings, wire/board clips, lever clips, spring/snake ...