... b)Alloy:6063 c)Certification:ISO9001,ISO14001 d)Oxidized,Powder coating,Electrophoresis,PVDF coating Aluminium extrusion details:Materials6063, 6063A, 6061TemperT5-T6StandardGB5237. ... 1-2008CertificationsISO9001, ISO14001Length4.5-6.3mSurface treatmentOxidized, Powder coating, Electrophoresis, ...