GB/T 23612-2017 Technical specification for process of anodizing and electrodeposition painting on aluminium alloy extruded profiles for architecture (English Version)
2017GB/T 23612-2017 Technical specification for process of anodizing and electrodeposition painting on aluminium alloy extruded profiles for architecture
2009GB/T 23612-2009 Anodizing and electrophoretic painting technical specification on wrought aluminium alloy extruded profiles for architecture