Home / Standards / GB/T 4339-2008 GB/T 4339-2008 Active Test methods for thermal expansion characteristic parameters of metallic materials 金属材料热膨胀特征参数的测定 Standard Type GBT ICS 77.040.99 CCS H21 Status 现行 Issue Date 2008-10-10 Implementation 2009-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A