Home / Standards / GB/T 20688.2-2006 GB/T 20688.2-2006 Active Rubber bearings - Part 2: Elastomeric seismic-protection isolators for bridges 橡胶支座 第2部分：桥梁隔震橡胶支座 Standard Type GBT ICS 83.140.99 CCS G47 Status 现行 Issue Date 2006-08-24 Implementation 2007-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A