Home / Standards / GB/T 6791-2012 GB/T 6791-2012 Abolished Road vehicles - Spark-plugs and their cylinder head housing - Basic characteristics and dimensions 道路车辆 火花塞及其气缸盖安装孔 基本特征及尺寸 Standard Type GBT ICS 43.060.50 CCS T37 Status 废止 Issue Date 2012-12-31 Implementation 2013-07-01 Responsible Dept 工业和信息化部 Drafting Unit N/A