China 'GB/T 29168.1-2021
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 29168.1-2021
Petroleum and natural gas industries—Induction bends, fittings and flanges for pipeline transportation systems—Part 1: Induction bends 石油天然气工业 管道输送系统用感应加热弯管、管件和法兰 第1部分:感应加热弯管
Issued Date:2021/8/20
Implemented Date:2022/3/1
Issued by:
The Standardization Administration of the People's Republic of China