RAL Classic Colours Dictionary — ASO

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RAL Color Name Dictionary and Reference Color names in 6 languages and color specs in RGB and HEX In 1927 the German 'Reichsausschuß für Lieferbedingungen und Gütesicherung' (State Commission for Delivery Terms and Quality Assurance) invented a collection of 40 colors under the name of "RAL 840". Prior to that date manufacturers and customers had to exchange samples to describe a tint, whereas from then on they would rely on numbers. In the 1930s the numbers were changed uniformly to four digits and the collection was renamed to "RAL 840 R" (R for revised). With tints constantly added to the …

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のキーワード可視性、ランクイン検索語、日次の順位変動。 RAL Classic Colours Dictionary.