精品午夜福利短视频无码_制度丝袜一区二区三区_成人免费激情网站_中文字幕在线91_成人欧美综合视频在线播放_久久免费亚洲综合_国产日韩综合中文字幕_亚洲欧美日韩国产图片视频_亚州国产精品免费影院_白丝袜AV网站在线观看

Navigation/on

Navigation/off

中文/EN

Media Focus

Media Focus

Nylon-what kind of material is it?

"The scientific name of nylon is polyamide, which is also a general term for thermoplastic resins. There are many kinds of nylon, with large production capacity and wide application. And its molecular structure is nylon fiber.

Nylon has good comprehensive properties, and its fiber strength is 1-2 times higher than that of cotton. It has the significant advantage of replacing steel, iron, copper and other metals with plastics in production and manufacturing, and is an important engineering plastic.

 

Service hotline
Please leave your email

Technical support: lanyun