The utility model has the advantages of simple structure, convenient use, and fast knot, practicality and economical.

本实用新型结构简单，使用方便，打结快捷，经济实用。

youdao

The utility model has the advantages of simple structure, convenient use, and fast knot, practicality and economical.

本实用新型结构简单，使用方便，打结快捷，经济实用。

youdao