Home / Standards / GB/T 34508-2017 GB/T 34508-2017 Active Additive manufacturing with TC4 alloys powder by bed electron beam melting 粉床电子束增材制造TC4合金材料 Standard Type GBT ICS 77.160 CCS H72 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