Production craft: Fiberglass windows screen is woven with high-grade fiberglass monofilament coated with PVC resin. The processes involve many steps like thread spinning, coating, weaving, formation, examination, etc. Specification: Normal Specification: 18x16, 20X20, 18X18, 18x14, 16x16, etc Color: Black, gray, gray-white mix. white, green, yellow. etc; Length: 30m--300m Width: 0.61m---2.40m.