Home / Standards / GB/T 6887-2007 GB/T 6887-2007 Abolished Sintered metal filter elements 烧结金属过滤元件 Standard Type GBT ICS 77.160 CCS H72 Status 废止 Issue Date 2007-04-30 Implementation 2007-11-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A