What is the difference between ribbon and rib in webbing?

What is the difference between ribbon and rib in webbing? In the thin webbing, there are two webbing types, satin ribbon and ribbed webbing. It is difficult to distinguish and understand the two types of webbing without careful observation.

Satin ribbons are smooth satin ribbons, divided into single-sided smooth and double-sided smooth, that is, single-sided satin ribbon and double-sided satin ribbon. The following is a ribbon.

Rib belt, as the name implies, is a webbing with a spiral pattern. It is written as threaded belt and threaded webbing. In normal use, it is also written as ribbed belt and ribbed webbing. The texture of the ribbed band is clearly identifiable, with obvious horizontal concave-convex spiral texture. This is also the obvious feature of ribbed belts.