... ,installed properly,has good sealing delivery on time Our aluminium profile including door and window series,industrial profile,and ... is up to the related national standard,and the aluminium alloy door and window is processed stbtly,installed properly, ... ,fluorocarbon spray-painting and wood grain coatingCHEMICAL COMPOSITION OF ALUMINIUM ALLOY PROFILESiMgFeCuMnZnCrTiImpurityAl0.2~0.60.45~0.9less than ...