Home / Standards / GB/T 33212-2016 GB/T 33212-2016 Active Steel open die forgings on hammer—General specifications 锤上钢质自由锻件 通用技术条件 Standard Type GBT ICS 77.140.85 CCS J32 Status 现行 Issue Date 2016-12-13 Implementation 2017-07-01 Responsible Dept 国家标准委 Drafting Unit N/A