Home / Standards / GB/T 13821-2009 GB/T 13821-2009 Abolished Zinc alloy die castings 锌合金压铸件 Standard Type GBT ICS 77.120.60 CCS J31 Status 废止 Issue Date 2009-04-01 Implementation 2009-12-01 Responsible Dept 国家标准委 Drafting Unit N/A