Home / Standards / GB/T 6725-2008 GB/T 6725-2008 Abolished Cold forming steel sections 冷弯型钢 Standard Type GBT ICS 77.140.70 CCS H44 Status 废止 Issue Date 2008-08-19 Implementation 2009-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会