Press stud closure. Four slots at the front and six at the back, ideal for credit CARDS.
按钮开合，正、反面各有四个和六个夹层，最适用于存放信用卡。
This invention distinguishing feature: Utilize the awl stud thrust press composition rule.
本发明特点：利用锥螺杆推力挤压的结构原理。
This invention distinguishing feature: Utilize the awl stud thrust press composition rule.
本发明特点：利用锥螺杆推力挤压的结构原理。
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