Home / Standards / GB/T 4656.1-2000 GB/T 4656.1-2000 Abolished Technical drawings--Simplified representation of bars and profile sections 技术制图 棒料、型材及其断面的简化表示法 Standard Type GBT ICS 01.100.30 CCS J04 Status 废止 Issue Date 2000-07-24 Implementation 2000-12-01 Responsible Dept 国家标准委 Drafting Unit N/A