Home / Standards / GB/T 4656-1984 GB/T 4656-1984 Abolished Representation of structural metal work 金属结构件表示法 Standard Type GBT ICS 91.080.10 CCS Q73 Status 废止 Issue Date 1984-07-30 Implementation 1985-05-01 Responsible Dept 国家标准委 Drafting Unit N/A