... 2>120G/M2 18*16MESH 3>FACTORY WINDOW INSECT SCREENWindow Screen, insect screen or bug ... , or vinyl mesh, Its primary purpose is to keep insects, leaves, debris, birds, and ... , while permitting fresh air-flow.the window screens to deny mosquitos are called mosquito screens, ... and the ones for denying flies would be named fly screensBY WALIBUILDING WINDOW ...