Home / Standards / GB/T 2501-2010 GB/T 2501-2010 Active Connection dimensions and mating face of marine flanges 船用法兰连接尺寸和密封面 Standard Type GBT ICS 23.040.60 CCS J15 Status 现行 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