The content of a 45 gsm (grams per square meter) fiberglass mesh can vary slightly depending on the specific manufacturer and intended use, but generally, it will consist of the following components:1. **Fiberglass Yarns or Threads**: The primary component of the mesh is fiberglass yarns or threads. These are typically made from glass fibers, which provide the mesh with its strength and durability. The thickness and density of the yarns may var ... Continue