... Certifited:By ISO9001,ISO14001 in china. Chinese Invisible window screen security Material: Fiberglass, PVC.Features:1.long life: excellent weather resistance ... , livestock farms, orchards, etc., are insects, mosquitoes, the best protection products.Mesh: 14x14 mesh, 16x16 mesh, 18x16 mesh.Width: 0.6 ... packaging and with woven bags outside. Chinese Invisible window screen security (Chinese factory)