Home / Standards / GB/T 23609-2009 GB/T 23609-2009 Abolished Seamless copper alloy tube for water desalting applications 海水淡化装置用铜合金无缝管 Standard Type GBT ICS 77.150.30 CCS H62 Status 废止 Issue Date 2009-04-15 Implementation 2010-02-01 Responsible Dept 中国有色金属工业协会 Drafting Unit 中国有色金属工业协会