Micrographics—Reflectance test target used in the test target for inspecting the quality of micrography of technical drawing
NORM herausgegeben am 11.4.1988
Designation standards: GB/T 8990-1988
Note: UNGĂśLTIG
Publication date standards: 11.4.1988
Country: Chinese technical standard
Kategorie: Technische Normen GB