... appearance, suitable for uses in ventilation and insect proof in construction, orchard, ranch, etc.Specifications: 1, Standard mesh/inch: 20x20mesh, 18x18mesh ... -aging, anti-severelycold, anti-burning hot, anti-mosit, being flame-resistant, diaphanous good, not to flee the silk, not to distort ... rensile strength to be big serbice life and so on. fire-resistant Insect Screen