Home / Standards / GB/T 13752-1992 GB/T 13752-1992 Abolished Design rules for tower cranes 塔式起重机设计规范 Standard Type GBT ICS 53.020.20 CCS P97 Status 废止 Issue Date 1992-11-05 Implementation 1993-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A