Home / Standards / GB/T 3630-2006 GB/T 3630-2006 Abolished Niobium sheet，strip and foil 铌板材、带材和箔材 Standard Type GBT ICS 77.150.99 CCS H63 Status 废止 Issue Date 2006-07-18 Implementation 2006-11-01 Responsible Dept 中国有色金属工业协会 Drafting Unit 中国有色金属工业协会