Home / Standards / GB/T 26099.4-2010 GB/T 26099.4-2010 Active General principles of three-dimensional modeling for mechanical products - Part 4：Model projection drawings 机械产品三维建模通用规则 第4部分：模型投影工程图 Standard Type GBT ICS 01.100.01 CCS J04 Status 现行 Issue Date 2011-01-10 Implementation 2011-10-01 Responsible Dept 国家标准委 Drafting Unit N/A