Home / Standards / GB/T 29528-2013 GB/T 29528-2013 Active Specification of copper alloy forgings for valves 阀门用铜合金锻件技术条件 Standard Type GBT ICS 23.060.99 CCS J16 Status 现行 Issue Date 2013-06-09 Implementation 2014-03-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A