Home / Standards / GB/T 37800-2019 GB/T 37800-2019 Active Hot rolled longitudinally profiled steel plate 热轧纵向变厚度钢板 Standard Type GBT ICS 77.140.50 CCS H46 Status 现行 Issue Date 2019-08-30 Implementation 2020-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A