... 125g/m2, 130g/m2, 150g/m2, practical high quality insect window screen Specifications:1. Standard Mesh: 3mm×3mm, 4mm×4mm, 5mm×5mm, 6mm ... material in industrial and agricultural buildings to keep away fly, mosquito and small insects or for the purpose of ventilation. Fiberglass ... resistance, corrosion resistance, heat resistance, easy cleaning, good ventilation, high strength, stable structure, etc.