Home / Standards / GB/T 6809.2-2013 GB/T 6809.2-2013 Active Reciprocating internal combustion engines—Vocabulary of components and systems—Part 2: Valves,camshaft drives and actuating mechanisms 往复式内燃机 零部件和系统术语 第2部分：气门、凸轮轴传动和驱动机构 Standard Type GBT ICS 27.020 CCS J90 Status 现行 Issue Date 2013-12-31 Implementation 2014-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A