Home / Standards / GB/T 26653-2011 GB/T 26653-2011 Active Exhaust manifold iron castings 排气歧管铸铁件 Standard Type GBT ICS 43.060.20 CCS J31 Status 现行 Issue Date 2011-06-16 Implementation 2012-03-01 Responsible Dept 国家标准委 Drafting Unit N/A