Home / Standards / GB/T 1299-2014 GB/T 1299-2014 Abolished Tool and mould steels 工模具钢 Standard Type GBT ICS 77.140.35 CCS H40 Status 废止 Issue Date 2014-12-05 Implementation 2015-09-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A