material:fiberglass,PVC. weaving:by adopting the technique of fiberglass single filament PVC coating,plain weaving,and then heating up to shape it. characteristics:corrosion-resistineasy-cleaning,non-deformation,ageing-resisting,and also has the performance of wentilation and sunshade. usefulness:preventing insects,mosquitos and flies for office,residence and various of buildings,livestock farms,fruit gardens and so on