Home / Standards / GB/T 29168.1-2021 GB/T 29168.1-2021 Active 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 Standard Type GBT ICS 75.200 CCS E 16 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 国家标准委 Drafting Unit N/A