Home / Standards / GB/T 24637.4-2020 GB/T 24637.4-2020 Active Geometrical product specifications(GPS)—General concepts—Part 4: Geometrical characteristics for quantifying GPS deviations 产品几何技术规范(GPS) 通用概念 第4部分:几何特征的GPS偏差量化 Standard Type GBT ICS 17.040.30 CCS J04 Status 现行 Issue Date 2020-04-28 Implementation 2020-11-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委