YB/T 4931-2021
Low-magnification structural defect rating chart of continuous cast steel profile blanks (English Version)

Standard No.

YB/T 4931-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

工业和信息化部

Latest

YB/T 4931-2021

YB/T 4931-2021 history

• 2021 YB/T 4931-2021 Low-magnification structural defect rating chart of continuous cast steel profile blanks