Home / Standards / GB/T 9764-2009 GB/T 9764-2009 Abolished Tyre valve-core chambers 轮胎气门嘴芯腔 Standard Type GBT ICS 83.160.01 CCS G41 Status 废止 Issue Date 2009-12-15 Implementation 2010-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A