GB/T 221-1979
Notations for markings of iron and steel products (English Version)

Standard No.

GB/T 221-1979

Language

Chinese, Available in English version

Release Date

1979

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2000-11

Replace By

GB/T 221-2000

Latest

GB/T 221-2008

GB/T 221-1979 history

• 2008 GB/T 221-2008 Notations for designations of iron and steel
• 2000 GB/T 221-2000 Notations for designations of iron and steel
• 1979 GB/T 221-1979 Notations for markings of iron and steel products