material:Alkaline-resistant fiberglass opening: 4m x 4mm .5mm x 5m, 6mm x 6mm ... in a carton,16 or32 rolls in a wooden tray. Fiberglass Fabric wiremesh is made of quality filamentary plastic coating glass ... to strengthen the cement, asphalt, marble,and some architectural engineeringmaterial.Fiberglass Fabric wiremesh Plays the important structure role in the heat ...