Home / Standards / GB/T 11880-1989 GB/T 11880-1989 Abolished Large die-blocks used for die-forging hammer and mechanical forging press--Specification 模锻锤和大型机械锻压机用模块技术条件 Standard Type GBT ICS 25.120.10 CCS J46 Status 废止 Issue Date 1989-12-02 Implementation 1990-07-01 Responsible Dept 国家标准委 Drafting Unit N/A