Home / Standards / GB/T 34560.4-2017 GB/T 34560.4-2017 Active Structural steels—Part 4:Technical delivery conditions for high yield strength quenched and tempered structural steel plates 结构钢 第4部分:淬火加回火高屈服强度结构钢板交货技术条件 Standard Type GBT ICS 77.140.01 CCS H46 Status 现行 Issue Date 2017-10-14 Implementation 2018-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A