... Offset Printing & Silkscreen Printing & Hot StampingThe specification of ring binder SizeA4 /FC or customers' requirementsMaterialEco-friendly PP, PVC, ... stationery products ,including L-shaped file ,expanding wallet , ring binders and etc.In the industry has a wide range ... engineering plastics. This product is tasteless, odourless, non-toxic loose .Resistance for heat, acid, alkali, salt, oxidant, etc ...