Home / Standards / GB/T 17773-1999 GB/T 17773-1999 Active Tolerancing of orientation and location--Projected tolerance zone 形状和位置公差 延伸公差带及其表示法 Standard Type GBT ICS 17.040.10 CCS J04 Status 现行 Issue Date 1999-06-14 Implementation 1999-11-01 Responsible Dept 国家标准委 Drafting Unit N/A