Home / Standards / GB/T 20688.4-2007 GB/T 20688.4-2007 Abolished Rubber bearings - Part 4：Normal rubber bearings 橡胶支座 第4部分：普通橡胶支座 Standard Type GBT ICS 83.140.99 CCS G47 Status 废止 Issue Date 2007-05-14 Implementation 2007-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A