Home / Standards / GB/T 33968-2025 GB/T 33968-2025 Active Hot rolled steel sections with improved weldability 改善焊接性能热轧型钢 Standard Type GBT ICS 77.140.70 CCS H44 Status 现行 Issue Date 2025-08-29 Implementation 2026-03-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A