YB/T 4955-2021
Green design product evaluation technical specifications for square and rectangular steel pipes for building structures (English Version)

Standard No.

YB/T 4955-2021

Language

Chinese, Available in English version

Release Date

2021

Published By

工业和信息化部

Latest

YB/T 4955-2021

YB/T 4955-2021 history

• 2021 YB/T 4955-2021 Green design product evaluation technical specifications for square and rectangular steel pipes for building structures