Home / Standards / GB/T 34474-2025 GB/T 34474-2025 Active Methods for determination of banded structure of steels 钢中带状组织的评定方法 Standard Type GBT ICS 77.040.99 CCS H24 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