Home / Standards / GB/T 30912-2014 GB/T 30912-2014 Active Rubber seals for automobile hydraulic disc brake cylinders 汽车液压盘式制动缸用橡胶密封件 Standard Type GBT ICS 83.140.50;43.040.50 CCS G43 Status 现行 Issue Date 2014-07-08 Implementation 2014-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A