... ,grey,green size:12x12,14x14,16x16,16x14,18x16...BWG31,BWG32... Fiberglass insect screening is made of glass fiber by the means ... .20m Standard Roll Length: 30m, 30.48m, 50m Composition: 32% fiberglass, 68% PVCMesh Weight: 115+/-5(G/M2)Fabric Thickness Breaking ...