Home / Standards / GB/T 4436-2012 GB/T 4436-2012 Active Wrought aluminum and aluminum alloy tubes - Dimensions and deviations 铝及铝合金管材外形尺寸及允许偏差 Standard Type GBT ICS 77.150.10 CCS H61 Status 现行 Issue Date 2012-12-31 Implementation 2013-10-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A