Home / Standards / GB/T 18685-2017 GB/T 18685-2017 Active The blank diameters for rolling general purpose metric screw threads 普通螺纹搓制和滚制前的毛坯直径 Standard Type GBT ICS 21.040.01 CCS J04 Status 现行 Issue Date 2017-09-29 Implementation 2018-04-01 Responsible Dept 国家标准委 Drafting Unit N/A