Home / Standards / GB/T 14979-1994 GB/T 14979-1994 Active Eutectic carbide of steel--Micrographic method using standard diagrams 钢的共晶碳化物不均匀度评定法 Standard Type GBT ICS 77.040.30 CCS H24 Status 现行 Issue Date 1994-04-05 Implementation 1995-01-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A