Fiberglass Mesh Hole size:4X4mm, 5X5mm,4X5mm,6X6mm Weight:45g/m2-160g/m2 width*length:1mx50m/roll,1mx100m/roll. ISO9001 Alkali-resistant Fiberglass Mesh Factory Fiberglass mesh is mainly alkali-resistant fiberglass fabric, it use the C /E-glass fiber yarn (main ingredient is a silicate, good chemical stability) through a special weaving technique, then by the anti-alkali and reinforcing agent etc ...