Home / Standards / GB/T 39705-2020 GB/T 39705-2020 Active Track bed vibration isolating mat for rail traffic 轨道交通用道床隔振垫 Standard Type GBT ICS 83.140.99 CCS G47 Status 现行 Issue Date 2020-12-14 Implementation 2021-11-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A