4-digital  RAL color card  has been choose to the color standard for 70 years. At the beginning only have 40 different colors , so far has developed for 200 kinds The dull color shading standard is RAL840-HR, shiny color shading basic standard RAL841-GL. This two kinds of color samples contain a long term wide arange of industrial color sample for important research Institute. Applied in the design of color sample, also including conform to the safety of the DIA standard color and color signal.

1. Five classical RAL colors on each page, total of 210 kinds of color