Home / Standards / GB/T 20564.14-2023 GB/T 20564.14-2023 Active Continuously cold rolled high strength steel sheet and strip for automobile—Part 14: Low density steel 汽车用高强度冷连轧钢板及钢带 第14部分:低密度钢 Standard Type GBT ICS 77.140.50 CCS H46 Status 现行 Issue Date 2023-08-06 Implementation 2024-03-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A