Home / Standards / GB/T 704-1988 GB/T 704-1988 Abolished Dimensions,shape,weight and tolerances for hot-rolled flats 热轧扁钢尺寸、外形、重量及允许偏差 Standard Type GBT ICS 77.140.50 CCS H44 Status 废止 Issue Date 1988-02-05 Implementation 1989-02-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A