Home / Standards / GB/T 24596-2009 GB/T 24596-2009 Abolished Ductile iron pipes and fittings - Polyurethane coatings 球墨铸铁管和管件 聚氨酯涂层 Standard Type GBT ICS 25.220.60 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