Home / Standards / GB/T 17457-2009 GB/T 17457-2009 Abolished Ductile iron pipes and fittings - Cement mortar lining 球墨铸铁管和管件 水泥砂浆内衬 Standard Type GBT ICS 25.220.99 CCS A29 Status 废止 Issue Date 2009-10-30 Implementation 2010-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A