Home / Standards / GB/T 4623-2014 GB/T 4623-2014 Abolished Circular concrete pole 环形混凝土电杆 Standard Type GBT ICS 91.100.30 CCS Q14 Status 废止 Issue Date 2014-12-05 Implementation 2015-12-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A