Home / Standards / GB/T 1348-2009 GB/T 1348-2009 Abolished Spheroidal graphite iron castings 球墨铸铁件 Standard Type GBT ICS 77.080.10 CCS J31 Status 废止 Issue Date 2009-03-05 Implementation 2009-09-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委