DIN 50979
DIN 50979 Metallic coatings - Electroplated coatings of zinc and zinc alloys on iron or steel with supplementary Cr(VI)-free treatment
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 07/01/2008
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 07/01/2008