Home / Standards / GBT 24637.2-2020 GBT 24637.2-2020 Geometrical product specifications — General concepts — Part 2: Basic principles, specifications, operations 产品几何技术规范 通用概念 第2部分:基本原则、规范、操作 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A