Home / Standards / GB/T 709-2019 GB/T 709-2019 Active Dimension,shape,weight and tolerance for hot-rolled steel strip,plate and sheet 热轧钢板和钢带的尺寸、外形、重量及允许偏差 Standard Type GBT ICS 77.140.50 CCS H46 Status 现行 Issue Date 2019-03-25 Implementation 2020-02-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A