... Hole Shape:Hexagonal 2.materail :Al 3.Application:air filtration,electro,mosquitoes Aluminum Foil Expanded Mesh stretch ... metal mesh for filter Expanded Mesh stretch Material :Aluminum foil Expanded ... 10X20mm,12X20mm,15X30mm,20X40mm Expanded Mesh stretch Application: electro, air filtration, architecture decorate, equipment protection, signal screen, power ...