Which industry does epoxy glass fiber rod belong to? The rubber and plastics industry or the composite material industry?

Which industry does the epoxy glass fiber rod belong to? The knowledge of this product is relatively shallow. I only know that it is an insulating product, and I don’t know anything about the industry. I only know that glass fiber is its reinforcing material and epoxy resin is its bonding material.

Analyzing from the raw materials, epoxy glass fiber rod belongs to the composite material industry because it conforms to the characteristics of composite materials and consists of two or more materials. One kind of strengthening one kind of adhesion. This is an emerging raw material, which is different from all the materials we have seen before.

From the production process, it is more like the rubber and plastic industry, because it has no metal elements and is more like a plastic product. And using epoxy resin and glass fiber can also make daily necessities like trash cans. Moreover, the shadow of chemistry can be seen in the definition of epoxy resin, and rubber and plastics themselves belong to a small category in the chemical industry.