Plastic Binding Ring, PVC Cover, Double Loop Wire manufacturer / supplier in China, offering 1" Metal Nylon Coated Double Loop Wire for Calendary & Notebook Box Packing, 7/8" Metal Nylon Coated Double Loop Wire for Calendary & Notebook Box Packing, 5/8" Nylon Coated Double Loop Wire for Calendary & Notebook Spool Packing and so on.