
Anodic oxide coatings and organic polymer coatings on aluminium and its alloys—Measurement of specular reflectance and specular gloss
NORM herausgegeben am 25.5.2026
Designation standards: GB/T 20503-2026
Note: Execute Date: december 2026
Publication date standards: 25.5.2026
Country: Chinese technical standard
Kategorie: Technische Normen GB