Pleated Insect Screens for Doors/windows, foldable screen netting, PE /PP monofilament yarn, mesh 20x20, sealed permanently on latitude/longitude yarn with high technology heat treatment. No coating with any harmful chemicals or resins. The layer is smoothly, strong, adhesive and bright luster with excellent anti-corrosive prosperity. Width : 1.7 M ~3.0M / Length: 183M±10M /per roll. Can be substituted for fiberglass window mesh.