Home / Standards / GB/T 3287 GB/T 3287 Active Malleable cast iron pipe fittings 可锻铸铁管路连接件 Standard Type GBT ICS 23.040.60 CCS Y71 Status 现行 Issue Date 2024-10-26 Implementation 2025-11-01 Responsible Dept 中国轻工业联合会 Drafting Unit 中国轻工业联合会