Home / Standards / GB/T 11251-2020 GB/T 11251-2020 Abolished Alloy structural steel plate and strip 合金结构钢钢板及钢带 Standard Type GBT ICS 77.140.50 CCS H46 Status 废止 Issue Date 2020-03-06 Implementation 2020-10-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A