Home / Standards / GBT 38761-2020 GBT 38761-2020 Geometrical Product Specifications — Characteristics and Conditions — Definitions 产品几何技术规范 特征和条件 定义 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