Home / Standards / GB/T 27684-2011 GB/T 27684-2011 Active Seamless and welded fittings for titanium and titanium alloy 钛及钛合金无缝和焊接管件 Standard Type GBT ICS 77.150 CCS H64 Status 现行 Issue Date 2011-12-30 Implementation 2012-10-01 Responsible Dept 中国有色金属工业协会 Drafting Unit 中国有色金属工业协会