material:Alkaline-resistant fiberglass opening: 4m x 4mm .5mm x 5m, 6mm x 6mm ... rolls in a wooden tray. Fiberglass Fabric wiremesh is made of quality filamentary plastic coating glass fiber yarn by special weaving technique ... to strengthen the cement, asphalt, marble,and some architectural engineeringmaterial.Fiberglass Fabric wiremesh Plays the important structure role in the heat ...