产品用途/Application:  松紧丝主要用于抓皱的时装和毛衣的袖口上。产品具有高回弹的功能，可以长时间内保持高弹性。该产品可以根据客人要求去调节粗细和弹性，从而更好的匹配面料的弹性。

Elastic silk is mainly used for wrinkled fashion and sweater cuffs. The product has the function of high rebound and can maintain high elasticity for a long time. The product can adjust the thickness and elasticity according to the customer's requirements, so as to better match the elasticity of the fabric.