Home / Standards / GB/T 13911-2008 GB/T 13911-2008 Active Designation for metallic coating and chemical treatment 金属镀覆和化学处理标识方法 Standard Type GBT ICS 25.220.40 CCS A29 Status 现行 Issue Date 2008-07-01 Implementation 2009-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A