YB/T 4911-2021 English PDF
Basic dataStandard ID: YB/T 4911-2021 (YB/T4911-2021)Description (Translated English): (Spherical graphite) Sector / Industry: Ferrous Metallurgy Industry Standard (Recommended) Word Count Estimation: 13,122 Issuing agency(ies): Ministry of Industry and Information Technology |