Home / Standards / GB/T 13402-2010 GB/T 13402-2010 Abolished Large diameter steel pipe flanges 大直径钢制管法兰 Standard Type GBT ICS 23.040.60 CCS J15 Status 废止 Issue Date 2011-01-10 Implementation 2011-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会