Home / Standards / GB/T 19449.4-2013 GB/T 19449.4-2013 Active Hollow taper interface with flange contact surface―Part 4: Dimensions of receivers for stationary tools 带有法兰接触面的空心圆锥接口 第4部分:用于非旋转类工具 安装孔的尺寸 Standard Type GBT ICS 25.100.01 CCS J41 Status 现行 Issue Date 2013-12-31 Implementation 2014-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A