Home / Standards / GB/T 6402-2008 GB/T 6402-2008 Abolished Steel forgings - Method for ultrasonic testing 钢锻件超声检测方法 Standard Type GBT ICS 77.040.20 CCS H26 Status 废止 Issue Date 2008-05-13 Implementation 2008-11-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A