... /m2, 120g/m2, 125g/m2, 130g/m2, 150g/m2, practical high quality insect window screen Specifications:1. Standard Mesh: 3mm×3mm, 4mm ... keep away fly, mosquito and small insects or for the purpose of ventilation. Fiberglass insect screen offers excellent properties of fire ... resistance, corrosion resistance, heat resistance, easy cleaning, good ventilation, high strength, stable structure, etc.