двойной катушки из Китая

double coil,double loop wire,twin wire double loop wire,double coil,double bindingwire,twin ring coil,double wire This product is made of high quality carbon steel and is easy to press into the shape of round. It is very convenient to bind. It is used in printing finished products such as bookbinding, table calendar, loose-leaf notebook, map, diary, catalogue, and recipe. Advantages: 1) Free precut service 2) Good quality 3) Full range of specifications-size from 1/4'' to 2'' 4) Wide choices of colors.