Product name:perforatedAluminium ceiling 1)Material:Aluminum alloy,the grade of aluminum alloy can be selected according to the actual requirements2)Surface treatment:Powder coated(ordinary powder,polyester),roller coated3)Parameter (Unit:mm) SpecificationThicknessHeight500*500600*600 0.6-1.2 19300*1200600*1200 4)Legend5)2 kinds of folding edges are available for every specification:short edge right angleshort edge bevel angle6)Pore diameter:1.0,1.8mm,2.3mm,3.0mm.And it can be selected according to your requirements.7)The main advantage of perforated ceiling board lies in sound-proof function.It can reach strong sound-adsorbing effect sticking non-woven fabrics.8)Installation method:9)The upper main keel and lower trigonal keed are tightly connected with cross structure,therefore,it boats of simple installation and disassembly with very even surface10)Application:mainly used in project forbig area, such as hotels,stores,office building, hospitals,railway stations,metro stations and so on.11)Certificate:ISO9001:2008,Product Quality Certificate