Home / Standards / GBT 1958-2017 GBT 1958-2017 Geometrical product specifications — Geometrical tolerancing — Inspection and verification 产品几何技术规范几何公差 检测与验证 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