Home / Standards / GBT 34634-2017 GBT 34634-2017 Geometrical product specifications — Measurement of plain workpiece dimensions — Selection of measuring instruments 产品几何技术规范 光滑工件尺寸测量 计量器具选择 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