Home / Standards / GB/T 970.2-2008 GB/T 970.2-2008 Active Circular screwing dies - Part 2: Technical specifications 圆板牙 第2部分:技术条件 Standard Type GBT ICS 25.100.50 CCS J41 Status 现行 Issue Date 2008-06-03 Implementation 2009-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A