Home / Standards / GB 4623-1994 GB 4623-1994 Abolished Circular prestressed concrete pole 环形预应力混凝土电杆 Standard Type GB ICS 91.100.30 CCS Q14 Status 废止 Issue Date 1994-12-22 Implementation 1995-08-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A