Home / Standards / GB/T 6723-1986 GB/T 6723-1986 Abolished Cold forming sectional steel--Open sectional steel for general structure--Dimension,form,weight and permissible deviations 通用冷弯开口型钢尺寸、外形、重量及允许偏差 Standard Type GBT ICS 77.140.70 CCS H44 Status 废止 Issue Date 1986-08-22 Implementation 1987-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A