Home / Standards / GB/T 34905-2017 GB/T 34905-2017 Active Sintered metal materials—Determination of the level of cleanliness of powder-metallurgy parts 烧结金属材料 粉末冶金零部件清洁度的测定 Standard Type GBT ICS 77.160 CCS H16 Status 现行 Issue Date 2017-11-01 Implementation 2018-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A