Home / Standards / GB/T 24597-2009 GB/T 24597-2009 Abolished Cr-Mn-W series of abrasion resistant iron castings 铬锰钨系抗磨铸铁件 Standard Type GBT ICS 77.140.80 CCS J31 Status 废止 Issue Date 2009-10-30 Implementation 2010-04-01 Responsible Dept 国家标准委 Drafting Unit N/A