Home / Standards / GB/T 6809.4-1989 GB/T 6809.4-1989 Abolished Reciprocating internal combustion engines--Terminology of components--Pressure-charging and air/exhaust gas ducting systems 往复式内燃机 零部件术语 增压及进排气管系统 Standard Type GBT ICS 27.020 CCS J90 Status 废止 Issue Date 1989-03-31 Implementation 1990-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A