Home / Standards / GB/T 6374-2018 GB/T 6374-2018 Active Rock drilling machines and pneumatic tools—Shanks and fitting dimensions of chuck bushings 凿岩机械与气动工具 尾柄和衬套配合尺寸 Standard Type GBT ICS 25.140.10 CCS J48 Status 现行 Issue Date 2018-12-28 Implementation 2019-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A