Home / Standards / GB/T 16743-1997 GB/T 16743-1997 Abolished Blanking clearance 冲裁间隙 Standard Type GBT ICS 25.020 CCS J32 Status 废止 Issue Date 1997-03-04 Implementation 1997-09-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会