Home / Standards / GB/T 14689-1993 GB/T 14689-1993 Abolished Technical drawings--Size and layout of drawing sheets 技术制图 图纸幅面和格式 Standard Type GBT ICS 01.100 CCS J04 Status 废止 Issue Date 1993-11-09 Implementation 1994-07-01 Responsible Dept 国家标准委 Drafting Unit N/A