塑料芯子直径4CM,高度5.5CM粗细约0.25mm，补鞋机专用线，当然也可以作为风筝线，大卷小卷两种
Plastic core diameter 4CM, height 5.5CM thickness of about 0.25mm, shoe machine dedicated line, of course, can also be used as a kite line, two large volumes of small