Home / Standards / GB/T 6809.2-1988 GB/T 6809.2-1988 Active Reciprocating internal combustion engines--Vocabulary of components and systems--Valves，camshaft drive and actuating mechanisms 往复式内燃机 零部件术语和定义 气门组件、凸轮轴传动和气门驱动机构 Standard Type GBT ICS 27.020 CCS J90 Status 现行 Issue Date 1988-06-25 Implementation 1989-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A