Home / Standards / GB/T 27571-2011 GB/T 27571-2011 Active Rubber hose and hose assemblies for conveying concrete 输送混凝土用橡胶软管及软管组合件 Standard Type GBT ICS 83.140.40 CCS G42 Status 现行 Issue Date 2011-12-05 Implementation 2012-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A