Home / Standards / GB/T 32247-2015 GB/T 32247-2015 Active Ferritic ductile iron castings suitable for low temperature service 低温铁素体球墨铸铁件 Standard Type GBT ICS 77.140.80 CCS J31 Status 现行 Issue Date 2015-12-10 Implementation 2016-07-01 Responsible Dept 国家标准委 Drafting Unit N/A