Painting structureTop surfaceBottom surfaceMarkPrimer coating + Finish coatingNo coating2/0Primer coating + Finish coatingPrimer coating or single back coating2/1Primer coating + Finish coatingPrimer coating + Finish coating2/2Primer coating + Finish coatingPrimer coating + Finish coating3/3Painting typeItemCodePolyesterPEHigh-durability polyesterHDPSilicon modified polyestersSMPPolyvinylidene fluoridePVDFZinc thickness sideZ40-Z275Painting ThicknessTop side: 10-25micronsBottom side: 7~10micronsColor SystemRAL codeSize0.14-2.0mm*600-1250mm.Base metalCold rolled steel,Website:http://www.cnhousesteel.com,Hot dip galvanized steel,Galvanum steel(CRC,HDG,GL)