Home / Standards / GB/T 14999.5-1994 GB/T 14999.5-1994 Abolished Photomicrographs and photomacrographs for evaluating of heat-resisting superalloys 高温合金低倍、高倍组织标准评级图谱 Standard Type GBT ICS 77.140.01 CCS H58 Status 废止 Issue Date 1994-04-04 Implementation 1994-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A