Home / Standards / GB/T 23639-2009 GB/T 23639-2009 Abolished Energy conservation and corrosion-resistant steel-madecable support system 节能耐腐蚀钢制电缆桥架 Standard Type GBT ICS 29.120.10 CCS K65 Status 废止 Issue Date 2009-04-21 Implementation 2009-11-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A