Home / Standards / GB/T 5237.4-2017 GB/T 5237.4-2017 Active Wrought aluminium alloys extruded profiles for architecture—Part 4: Powder coating profiles 铝合金建筑型材 第4部分:喷粉型材 Standard Type GBT ICS 77.150.10 CCS H61 Status 现行 Issue Date 2017-10-14 Implementation 2018-05-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A