Download or read book GB T 221 2008 Translated English of Chinese Standard GBT 221 2008 GB T221 2008 GBT221 2008 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2016-10-01 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies notations for designations of iron and steel. It is applicable to the preparation of designations for pig iron, carbon structural steels, low-alloy structure steel, quality carbon structural steel, free-cutting steel etc.