Home / Standards / GB/Z 41117-2021 GB/Z 41117-2021 Active Fasteners—Fundamentals of hydrogen embrittlement in steel fasteners 紧固件 钢制紧固件氢脆基本原理 Standard Type GBZ ICS 21.060.01 CCS J13 Status 现行 Issue Date 2021-12-31 Implementation N/A Responsible Dept 中国机械工业联合会 Drafting Unit N/A