分类： 信息化
2014-06-10 15:19:56
provide a shoelace the fixed structure, including the instep and located in the upper two shoes eyes, its characteristics is respectively along the two rows of shoes eyes up near the mouth position each set has a bent into fold shape elastic clamp, elastic clamp opening direction to deviate from the direction of the eyelet. design of this structure has simple structure, convenient to tie his shoes and laces and the advantages of not easy to loose.
Source:
