Home / Standards / GB/T 33884-2017 GB/T 33884-2017 Active Aluminum alloy profile and profile welded combination for heavy-duty freight train 重载货运列车用铝合金型材及厢块 Standard Type GBT ICS 77.150.10 CCS H61 Status 现行 Issue Date 2017-07-12 Implementation 2018-02-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A