What are the main components of synthetic fibers?

What are the main components of synthetic fibers? Synthetic fibers are a kind of chemical fibers, and are a general term for chemical fibers made by using synthetic polymer compounds as raw materials. It is a linear organic polymer compound, such as polyacrylonitrile, polyester, polyamide, etc

TO GIRLS | New Clothes for Your Summer Escort

Give me five 2018 Summer brings you into a blend of funky and sporty feelings. In summer we let fun continue, let love and joy join in a joyful journey, make you feel fresh and fresh, create a colorful diary in summer, and press the growth shutter to set childhood time. . 2018 give me five Get re

Do you really know the needs of the breasts?

What causes the breast to secretly "aging" it? 1, irregular living habits 2, nutrition is not balanced, exercise less 3, non-compliance of the chemical fiber lining, poor ventilation, rough feel, long-term close to the nipple, the nipple will continue to friction, resulting in nipple